[Iaude] MPEC X74: 2018 XL1 [a=1.81,e=0.45,i=2.5,H=27.0]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Mon Dec 10 23:21:16 EST 2018


M.P.E.C. 2018-X74                                Issued 2018 Dec. 11, 04:18 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


                                   2018 XL1
 
Observations:
     K18X01L* C2018 12 10.20137 02 09 32.40 +00 12 48.5          18.4 GVEX074703
     K18X01L  C2018 12 10.20703 02 09 47.92 +00 10 59.4          18.6 GVEX074703
     K18X01L  C2018 12 10.21270 02 10 03.59 +00 09 10.9          18.4 GVEX074703
     K18X01L  C2018 12 10.21837 02 10 19.43 +00 07 20.9                VEX074703
     K18X01L  C2018 12 10.23631902 11 07.25 +00 01 10.5          18.0 GVEX074H01
     K18X01L  C2018 12 10.23969402 11 16.86 +00 00 04.4          18.0 GVEX074H01
     K18X01L  C2018 12 10.25267102 11 54.05 -00 04 10.7          18.4 GVEX074H01
     K18X01L  C2018 12 10.25896802 12 12.25 -00 06 15.2          17.9 GVEX074H01
     K18X01L  C2018 12 10.27280 02 12 54.77 -00 10 28.7          18.3 GVEX074I52
     K18X01L  C2018 12 10.27293 02 12 55.16 -00 10 31.5          18.2 GVEX074I52
     K18X01L  C2018 12 10.27306 02 12 55.56 -00 10 33.7          17.9 GVEX074I52
     K18X01L  C2018 12 10.27319 02 12 55.94 -00 10 36.9          17.9 GVEX074I52
     K18X01L  C2018 12 10.33066 02 15 48.76 -00 30 00.0          17.9 GVEX074I52
     K18X01L  C2018 12 10.33079 02 15 49.19 -00 30 02.9          17.7 GVEX074I52
     K18X01L  C2018 12 10.33092 02 15 49.56 -00 30 05.6          17.9 GVEX074I52
     K18X01L  C2018 12 10.33105 02 15 49.95 -00 30 08.3          18.1 GVEX074I52
     K18X01L  C2018 12 10.36076 02 17 53.74 -00 37 33.2          19.4 cVEX074T05
     K18X01L  C2018 12 10.36264 02 17 59.28 -00 38 11.1          19.4 cVEX074T05
     K18X01L  C2018 12 10.36939 02 18 19.82 -00 40 34.8          19.2 cVEX074T05
     K18X01L  C2018 12 10.38912 02 19 20.00 -00 47 29.3          18.5 cVEX074T05
     K18X01L  C2018 12 10.39784 02 19 46.83 -00 50 32.9          19.3 cVEX074T05
     K18X01L  C2018 12 10.46645 02 24 33.43 -01 18 59.8          18.4 RrEX074P93
     K18X01L  C2018 12 10.46739 02 24 36.50 -01 19 20.3          18.5 RrEX074P93
     K18X01L  C2018 12 10.46923 02 24 42.52 -01 20 01.9          18.6 RrEX074P93
     K18X01L KC2018 12 10.75157 02 43 19.91 -03 15 20.1          18.1  VEX074104
     K18X01L KC2018 12 10.75469 02 43 32.34 -03 16 40.4          18.0  VEX074104
     K18X01L KC2018 12 10.75897 02 43 49.46 -03 18 32.8          18.1  VEX074104
     K18X01L KC2018 12 10.76271 02 44 04.38 -03 20 10.3          17.6  VEX074104
     K18X01L KC2018 12 10.76547002 44 12.64 -03 21 39.6          18.0 GVEX074L01
     K18X01L KC2018 12 10.76645902 44 16.57 -03 22 05.4          18.0 GVEX074L01
     K18X01L KC2018 12 10.76803802 44 22.92 -03 22 47.3          18.1 GVEX074L01
     K18X01L KC2018 12 10.76941902 44 28.42 -03 23 23.4          18.2 GVEX074L01
     K18X01L KC2018 12 10.77060802 44 33.20 -03 23 55.0          18.2 GVEX074L01
     K18X01L KC2018 12 10.80824 02 47 08.66 -03 40 41.4          18.2 GVEX074587
     K18X01L KC2018 12 10.80858 02 47 10.04 -03 40 50.2          17.9 GVEX074587
     K18X01L KC2018 12 10.81014 02 47 16.40 -03 41 32.4          18.0 GVEX074587
     K18X01L KC2018 12 10.81186 02 47 23.45 -03 42 18.9          17.9 GVEX074587
     K18X01L KC2018 12 10.85479 02 50 19.09 -04 01 17.6          17.1 RqEX074160
     K18X01L KC2018 12 10.85581 02 50 23.44 -04 01 45.2          17.5 RqEX074160
     K18X01L KC2018 12 10.85692 02 50 28.01 -04 02 15.0          17.9 RqEX074160
     K18X01L KC2018 12 10.87654 02 51 52.02 -04 11 41.2          17.2 RqEX074K38
     K18X01L KC2018 12 10.88324 02 52 20.28 -04 14 47.0          17.4 RqEX074K38
     K18X01L KC2018 12 10.88991 02 52 48.66 -04 17 53.3          17.5 RqEX074K38
     K18X01L KC2018 12 10.95895902 57 59.72 -04 51 30.7          17.9 GVEX074J95
     K18X01L KC2018 12 10.95985002 58 03.70 -04 51 55.9          17.8 GVEX074J95
     K18X01L KC2018 12 10.96078202 58 07.86 -04 52 22.7          17.9 GVEX074J95
     K18X01L KC2018 12 10.96171102 58 12.03 -04 52 49.5          17.8 GVEX074J95
     K18X01L HC2018 12 10.98550 02 59 48.97 -05 03 01.5          17.5 GVEX074204
     K18X01L HC2018 12 10.98910 03 00 05.40 -05 04 45.9                VEX074204
     K18X01L KC2018 12 10.99257 03 00 21.26 -05 06 25.7                VEX074204
 
Observer details:
104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
    P. Bacci, L. Tesi, G. Fagioli.  0.60-m reflector + CCD.
160 Castelmartini.  Observers M. Jaeger, E. Prosperi, S. Prosperi,
    W. Vollmann.  Measurer E. Prosperi.  0.35-m f/10 Schmidt-Cassegrain + CCD.
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.60-m f/4.64 reflector +
    CCD.
587 Sormano.  Observers M. Calcagno, A. Fumagalli, P. Sicoli, A. Testa.
    Measurer P. Sicoli.  0.5-m f/6.8 reflector + CCD.
703 Catalina Sky Survey.  Observer B. M. Africano.  Measurers B. M. Africano,
    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, R. L. Seaman,
    F. C. Shelly.  0.68-m Schmidt + 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.
I52 Steward Observatory, Mt. Lemmon Station.  Observer G. J. Leonard.
    Measurers B. M. Africano, 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, R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3
    Schmidt-Cassegrain + CCD.
K38 M57 Observatory, Saltrio.  Observer G. Baj.  0.3-m f/5.5 Ritchey-Chretien
    + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.
P93 Space Tracking and Communications Center, JAXA.  Observers S. Okumura,
    T. Fujiwara.  1.0-m f/3.0 reflector + CCD.
T05 ATLAS-HKO, Haleakala.  Observers L. Denneau, H. Flewelling, A. Heinze,
    H. Weiland, J. Tonry.  Measurers L. Denneau, H. Flewelling, A. Heinze,
    J. Tonry, A. Fitzsimmons, D. Young, N. Erasmus.  0.5-m f/2.0 Schmidt +
    CCD.
 
Orbital elements:
2018 XL1                                                 Earth MOID = 0.0065 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  52.63642              (2000.0)            P               Q
n   0.40452914     Peri.  192.21202     +0.05744017     -0.99743790
a   1.8106569      Node   254.50654     +0.91965019     +0.06948548
e   0.4547466      Incl.    2.53611     +0.38851533     -0.01701176
P   2.44           H   27.0           G   0.15           U   6
Residuals in seconds of arc
181210 703 (2.2+  0.2-)   181210 T05  0.3-  1.0+    181210 587  0.0   0.3+
181210 703  0.4+  0.6-    181210 T05  1.5+  1.1-    181210 587  0.1-  0.0
181210 703  0.6-  0.2+    181210 T05 (1.3-  0.9+)   181210 587  0.3+  0.3-
181210 703  0.1+  0.2-    181210 T05 (4.2-  2.7+)   181210 160  1.5-  0.2-
181210 H01  0.1+  0.1-    181210 P93  0.1-  0.3+    181210 160  0.2+  0.1+
181210 H01  0.1+  0.1-    181210 P93  0.0   0.8+    181210 160  0.5-  0.7+
181210 H01  0.1-  0.1-    181210 P93  0.2+  0.2+    181210 K38  1.0+  0.8+
181210 H01  0.2-  0.2-    181210 104  0.4+  0.9-    181210 K38  0.1+  0.5+
181210 I52  0.7-  0.1+    181210 104  0.1+  0.3+    181210 K38  1.2+  0.6-
181210 I52  0.5-  0.1-    181210 104  0.5+  0.2-    181210 J95  0.1+  0.3-
181210 I52  0.2-  0.2+    181210 104  0.0   0.4+    181210 J95  0.0   0.1+
181210 I52  0.2-  0.4-    181210 L01  0.2+  0.5+    181210 J95  0.2-  0.0
181210 I52 (1.0-  0.3+)   181210 L01  0.2-  0.7+    181210 J95  0.1-  0.1-
181210 I52 (0.6-  0.1+)   181210 L01  0.3+  0.3+    181210 204  0.5+  0.2-
181210 I52 (1.1-  0.0 )   181210 L01  0.2-  0.5+    181210 204  0.4+  0.6-
181210 I52 (1.3-  0.0 )   181210 L01  0.1+  0.2+    181210 204  0.0   0.1-
181210 T05  1.6+  0.4-    181210 587  0.1+  0.0

Ephemeris:
2018 XL1                 a,e,i = 1.81, 0.45, 3                   q = 0.9873
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 11    00 02 26.9 +14 50 48   0.1101  1.0728   136.6    39.4    23.9
...
2018 11 26    00 03 21.4 +13 08 52   0.05760 1.0186   121.9    55.3    22.9
...
2018 12 04    00 23 12.7 +10 57 11   0.02985 1.0000   117.9    60.6    21.5
...
2018 12 10    01 59 51.9 +01 21 17   0.01014 0.9914   130.0    49.6    18.9
2018 12 11    03 01 28.0 -04 55 07   0.0076560.9904   137.9    41.8    18.0
2018 12 12    04 46 19.0 -14 14 30   0.0062930.9896   142.1    37.7    17.5
...
2018 12 18    10 29 48.9 -18 30 13   0.02126 0.9872    98.2    80.6    21.4
...
2018 12 26    11 09 25.3 -16 01 57   0.04861 0.9917    98.4    78.8    23.2
...
2019 01 10    11 20 58.3 -14 25 05   0.09799 1.0230   111.2    63.6    24.3

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-X74



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