[Iaude] MPEC J174: 2021 JU4 [a=1.27,e=0.19,i=15.0,H=24.7]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Tue May 11 18:22:34 EDT 2021


M.P.E.C. 2021-J174                                 Issued 2021 May 11, 22:21 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  They are published
    on behalf of Division F of the International Astronomical Union by the
          Minor Planet Center, Smithsonian Astrophysical Observatory,
                          Cambridge, MA 02138, U.S.A.

             Prepared using the Tamkin Foundation Computer Network

                              MPC at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                    2021 JU4                                    


Observations:
     K21J04U* C2021 05 06.21921611 04 28.76 +18 39 34.0          20.78GVEJ174G96
     K21J04U  C2021 05 06.22443411 04 26.60 +18 38 03.7          20.37GVEJ174G96
     K21J04U  C2021 05 06.22966611 04 24.45 +18 36 34.4          20.25GVEJ174G96
     K21J04U  C2021 05 06.23486911 04 22.28 +18 35 03.7          20.53GVEJ174G96
     K21J04U KC2021 05 06.33918311 03 40.90 +18 04 47.7          20.11GVEJ174I52
     K21J04U KC2021 05 06.34214811 03 39.75 +18 03 55.6          20.29GVEJ174I52
     K21J04U KC2021 05 06.34362911 03 39.17 +18 03 30.0          20.38GVEJ174I52
     K21J04U KC2021 05 06.90301311 00 25.74 +15 19 31.5          20.4 GVEJ174J95
     K21J04U KC2021 05 06.90581611 00 31.22 +15 21 59.3          20.0 GXEJ174Y00
     K21J04U KC2021 05 06.90659411 00 24.36 +15 18 26.8          20.4 GVEJ174J95
     K21J04U KC2021 05 06.90832211 00 30.17 +15 21 14.9          20.5 GXEJ174Y00
     K21J04U KC2021 05 06.91074711 00 29.18 +15 20 31.7          20.2 GXEJ174Y00
     K21J04U KC2021 05 06.91316611 00 28.13 +15 19 48.7                XEJ174Y00
     K21J04U KC2021 05 06.91706711 00 20.18 +15 15 19.9          20.5 GVEJ174J95
     K21J04U KC2021 05 07.07843310 59 26.19 +14 27 43.5          20.5 VuEJ174H21
     K21J04U KC2021 05 07.08424210 59 23.79 +14 25 58.5          20.8 VuEJ174H21
     K21J04U KC2021 05 07.08937310 59 21.69 +14 24 26.5          20.8 VuEJ174H21
     K21J04U KC2021 05 07.11012 10 59 14.24 +14 18 11.3          20.2 RqEJ174734
     K21J04U KC2021 05 07.12025 10 59 10.07 +14 15 10.4          19.9 RqEJ174734
     K21J04U KC2021 05 07.12530 10 59 08.07 +14 13 38.9          20.1 RqEJ174734
     K21J04U KC2021 05 07.16102010 58 55.61 +14 03 13.0          20.49GVEJ174I52
     K21J04U KC2021 05 07.16425210 58 54.27 +14 02 14.9          20.19GVEJ174I52
     K21J04U KC2021 05 07.16671410 58 53.27 +14 01 29.9          19.89GVEJ174I52
     K21J04U KC2021 05 07.16769610 58 52.83 +14 01 12.0          20.47GVEJ174I52
     K21J04U  C2021 05 07.20307110 58 38.15 +13 50 30.3          20.17GVEJ174G96
     K21J04U KC2021 05 07.20427 10 58 35.88 +13 49 46.8          20.5 GVEJ174H36
     K21J04U  C2021 05 07.20880310 58 35.81 +13 48 46.7          20.36GVEJ174G96
     K21J04U KC2021 05 07.21227 10 58 32.67 +13 47 20.8          20.3 GVEJ174H36
     K21J04U  C2021 05 07.21451910 58 33.44 +13 47 02.4          20.48GVEJ174G96
     K21J04U  C2021 05 07.22024310 58 31.10 +13 45 17.9          20.53GVEJ174G96
     K21J04U KC2021 05 07.22029 10 58 29.54 +13 44 54.9          20.4 GVEJ174H36
     K21J04U  C2021 05 07.22647 10 58 29.69 +13 43 21.1          20.6 GVEJ174654
     K21J04U  C2021 05 07.23448 10 58 26.40 +13 40 55.1          20.6 GVEJ174654
     K21J04U KC2021 05 07.24485 10 58 19.83 +13 37 25.1          19.9 RqEJ174734
     K21J04U KC2021 05 07.24960 10 58 17.92 +13 35 56.5          20.2 RqEJ174734
     K21J04U KC2021 05 07.25432 10 58 16.04 +13 34 30.4          20.9 RqEJ174734
     K21J04U  C2021 05 07.28132 10 58 07.46 +13 26 39.7          20.3 GVEJ174654
     K21J04U  C2021 05 07.28933 10 58 04.27 +13 24 12.9          20.3 GVEJ174654
     K21J04U HC2021 05 07.86343 10 54 45.16 +10 27 46.0                VEJ174204
     K21J04U KC2021 05 07.88469 10 54 36.72 +10 21 07.8          20.3 GVEJ174204
     K21J04U bC2021 05 07.90327710 54 28.72 +10 15 20.8          20.3 GVEJ174L01
     K21J04U bC2021 05 07.90483410 54 28.12 +10 14 51.3          20.0 GVEJ174L01
     K21J04U bC2021 05 07.90639110 54 27.45 +10 14 22.3          20.0 GVEJ174L01
     K21J04U bC2021 05 07.90950610 54 26.29 +10 13 23.7          20.3 GVEJ174L01
     K21J04U KC2021 05 07.91962210 54 23.77 +10 10 19.5          20.3 GVEJ174I93
     K21J04U KC2021 05 07.92518510 54 21.59 +10 08 35.4          20.3 GVEJ174I93
     K21J04U KC2021 05 07.96908510 54 05.45 +09 54 31.9          20.0 GVEJ174Z99
     K21J04U KC2021 05 07.97087310 54 04.78 +09 53 58.0          20.0 GVEJ174Z99
     K21J04U KC2021 05 07.97266010 54 04.10 +09 53 24.5          20.2 GVEJ174Z99
     K21J04U KC2021 05 08.08852110 53 27.86 +09 17 55.4          20.3 VuEJ174H21
     K21J04U KC2021 05 08.09432810 53 25.47 +09 16 06.4          20.5 VuEJ174H21
     K21J04U KC2021 05 08.14195310 53 08.84 +09 01 23.2          20.6 VqEJ174858
     K21J04U KC2021 05 08.14749710 53 06.54 +08 59 38.9          20.3 VqEJ174858
     K21J04U KC2021 05 08.15303710 53 04.26 +08 57 54.4          20.3 VqEJ174858
     K21J04U  C2021 05 08.20519210 52 43.53 +08 41 37.1          20.46GVEJ174G96
     K21J04U  C2021 05 08.21079610 52 41.23 +08 39 51.1          20.43GVEJ174G96
     K21J04U  C2021 05 08.21640610 52 38.95 +08 38 05.2          20.46GVEJ174G96
     K21J04U  C2021 05 08.22202610 52 36.71 +08 36 18.8          20.35GVEJ174G96
     K21J04U KC2021 05 08.82760710 49 08.07 +05 24 05.7          20.4 GVEJ174104
     K21J04U KC2021 05 08.85458110 48 57.24 +05 15 28.7          19.7 GVEJ174104
     K21J04U KC2021 05 08.86053510 48 54.86 +05 13 35.1                VEJ174104
     K21J04U  C2021 05 09.13780810 47 20.65 +03 45 18.9          20.1 GVEJ174H01
     K21J04U  C2021 05 09.14128710 47 19.22 +03 44 12.0          19.7 GVEJ174H01
     K21J04U KC2021 05 09.14519110 47 17.48 +03 42 53.8          20.5 VqEJ174858
     K21J04U KC2021 05 09.15073010 47 15.25 +03 41 07.4          20.4 VqEJ174858
     K21J04U  C2021 05 09.15455410 47 13.83 +03 39 56.4          20.3 GVEJ174H01
     K21J04U KC2021 05 09.15627410 47 12.97 +03 39 19.9          20.4 VqEJ174858
     K21J04U  C2021 05 09.15841310 47 12.26 +03 38 42.2          20.6 GVEJ174H01
     K21J04U  C2021 05 09.20602410 46 53.52 +03 23 29.4          20.49GVEJ174G96
     K21J04U  C2021 05 09.21122410 46 51.42 +03 21 48.9          20.49GVEJ174G96
     K21J04U  C2021 05 09.21643010 46 49.32 +03 20 09.0                VEJ174G96
     K21J04U  C2021 05 09.22164010 46 47.30 +03 18 29.1          20.01GVEJ174G96
     K21J04U  C2021 05 10.18152510 41 18.04 -01 50 25.7          20.25GVEJ174G96
     K21J04U  C2021 05 10.18673310 41 15.98 -01 52 05.8          20.03GVEJ174G96
     K21J04U  C2021 05 10.19194710 41 13.89 -01 53 45.5          20.18GVEJ174G96
     K21J04U  C2021 05 10.19715510 41 11.78 -01 55 27.6          20.55GVEJ174G96
     K21J04U  C2021 05 11.19486410 35 32.38 -07 14 16.3          20.03GVEJ174G96
     K21J04U  C2021 05 11.20001010 35 30.35 -07 15 53.3          21.07GVEJ174G96
     K21J04U  C2021 05 11.20514910 35 28.35 -07 17 32.3          20.38GVEJ174G96
     K21J04U  C2021 05 11.21030010 35 26.35 -07 19 09.8          20.40GVEJ174G96

Observer details:
104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
    P. Bacci, L. Tesi, G. Fagioli.  0.60-m reflector + CCD.
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector +
    CCD.
654 Table Mountain Observatory, Wrightwood-PHMC.  Observers P. Choi, N. Saini,
    C. Zhai, R. Trahan, M. Shao.
734 Farpoint Observatory, Eskridge.  Observers G. Hug, D. Cromer, D. Goodin,
    R. Valentine.  Measurer D. Cromer.  0.7-m reflector + CCD.
858 Tebbutt Observatory, Edgewood.  Observer F. B. Zoltowski.  0.51-m Schmidt-
    Cassegrain + CCD.
G96 Mt. Lemmon Survey.  Observers H. Groeller, K. W. Wierzchos.  Measurers E.
    J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H.
    Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D.
    Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.5-m reflector +
    10K CCD.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0
    astrograph + CCD.
H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer G. J. Leonard.
    Measurers E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
    Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A.
    Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.0-m
    reflector + CCD.
I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/3.7 reflector + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3 Schmidt-Cassegrain
    + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.
Y00 SONEAR Observatory, Oliveira.  Observers C. Jacques, E. Pimentel, J.
    Barros.  Measurer C. Jacques.  0.45-m f/2.9 reflector + CCD.
Z99 Clixby Observatory, Cleethorpes.  Observer A. Mickleburgh.  0.36-m f/8
    Schmidt-Cassegrain + CCD.

Orbital elements:
2021 JU4                                                 Earth MOID = 0.0206 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
M 258.38847              (2000.0)            P               Q                  
n   0.68860592     Peri.  185.20187     -0.63902186     +0.74680681             
a   1.2700541      Node    45.24317     -0.69603150     -0.45948728             
e   0.1889817      Incl.   15.03466     -0.32740070     -0.48078168             
P   1.43           H   24.70          G   0.15           U   7                  
Residuals in seconds of arc
210506 G96  0.1+  0.2-    210507 H36  0.3-  0.5-    210508 G96 (0.2+  1.2-)
210506 G96  0.1+  0.5-    210507 G96  0.1+  0.3+    210508 G96 (0.2-  1.3-)
210506 G96  0.2+  0.6+    210507 G96  0.3+  0.1+    210508 G96 (0.2-  1.1-)
210506 G96  0.1-  0.2-    210507 H36  0.6+  0.0     210508 G96 (0.3+  1.2-)
210506 I52  0.6+  0.4-    210507 654  0.3+  0.4+    210508 104  1.0+  0.0
210506 I52  0.2+  0.6-    210507 654  0.2+  0.2+    210508 104  0.1+  0.2-
210506 I52  0.1-  0.2-    210507 734  0.7-  1.0-    210508 104  0.2-  0.4+
210506 J95  1.2-  0.1+    210507 734 (1.6-  2.8-)   210509 H01  0.0   0.0
210506 Y00  0.6-  0.0     210507 734 (2.4-  2.6-)   210509 H01  0.1-  0.0
210506 J95  0.4-  0.5-    210507 654  0.3+  0.3+    210509 858  0.4-  0.2-
210506 Y00  0.4-  0.1+    210507 654  0.2+  0.1+    210509 858  0.0   0.2+
210506 Y00  0.0   0.1-    210507 204  0.1-  0.3+    210509 H01  0.1+  0.2-
210506 Y00  0.4-  0.2-    210507 204 (0.6+  0.6-)   210509 858  0.5-  0.5-
210506 J95  0.8-  0.2+    210507 L01  0.1+  0.1-    210509 H01  0.2+  0.1-
210507 H21  0.1-  0.7+    210507 L01  0.3+  0.5-    210509 G96  0.4+  0.1+
210507 H21  0.1-  0.3+    210507 L01  0.6-  0.3-    210509 G96  0.1+  0.2-
210507 H21  0.1+  0.7+    210507 L01  0.2+  0.5-    210509 G96  0.0   0.3+
210507 734 (2.1-  2.5-)   210507 I93  0.6-  0.2-    210509 G96 (0.9+  0.9+)
210507 734  1.9-  0.7-    210507 I93  0.3-  0.0     210510 G96 (0.4-  1.1-)
210507 734  0.8-  1.0-    210507 Z99  0.8-  0.2-    210510 G96  0.1-  0.7-
210507 I52  0.1-  0.0     210507 Z99  0.7-  0.5-    210510 G96  0.2-  0.2+
210507 I52  0.1+  0.3+    210507 Z99  0.7-  0.4-    210510 G96 (0.7-  1.5-)
210507 I52  0.4+  0.1-    210508 H21  0.1-  0.0     210511 G96  0.2+  1.0+
210507 I52  0.1+  0.2-    210508 H21  0.3-  0.1+    210511 G96 (0.0   1.4+)
210507 G96  0.0   0.0     210508 858  0.4+  0.0     210511 G96  0.0   0.4-
210507 H36  0.1-  0.3-    210508 858  0.1+  0.1+    210511 G96  0.2+  0.5-
210507 G96  0.5+  0.6+    210508 858  0.1+  0.1-

Ephemeris:
2021 JU4                 a,e,i = 1.27, 0.19, 15                  q = 1.0300
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 11    13 25 55.6 +63 08 50   0.1440  1.0570   108.6    64.0    22.9
...
2021 04 26    12 06 27.4 +50 25 30   0.08314 1.0380   110.4    65.3    21.7
...
2021 05 04    11 17 55.3 +28 25 01   0.05750 1.0324   113.3    63.7    20.8
...
2021 05 10    10 42 24.3 -00 50 08   0.05025 1.0303   112.9    64.5    20.6
2021 05 11    10 36 43.3 -06 10 27   0.05059 1.0302   112.2    65.2    20.6
2021 05 12    10 31 07.5 -11 23 52   0.05137 1.0301   111.4    66.0    20.6
...
2021 05 18    09 59 32.7 -36 55 46   0.06397 1.0305   105.6    71.0    21.3
...
2021 05 26    09 23 00.3 -55 12 26   0.09235 1.0340   100.6    74.3    22.2
...
2021 06 10    08 31 07.9 -68 56 34   0.1534  1.0493    98.6    73.0    23.3

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-J174




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