MPEC 2023-K187 : 2014 LZ20
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M.P.E.C. 2023-K187 Issued 2023 May 29, 13:53 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. 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@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2014 LZ20
Revision to MPEC 2014-L41
Additional Observations:
K14L20Z 1C2023 05 27.14770812 37 55.718+22 37 35.69 21.18GVEK187G96
K14L20Z 1C2023 05 27.15336512 37 54.948+22 36 49.43 20.86GVEK187G96
K14L20Z 1C2023 05 27.15900212 37 54.084+22 36 03.38 21.52GVEK187G96
K14L20Z 1C2023 05 27.16465112 37 53.249+22 35 16.73 20.82GVEK187G96
K14L20Z KC2023 05 27.25935112 37 40.087+22 22 21.97 20.40GVEK187I52
K14L20Z KC2023 05 27.26227912 37 39.666+22 21 57.92 20.71GVEK187I52
K14L20Z KC2023 05 27.26520412 37 39.245+22 21 33.98 21.12GVEK187I52
K14L20Z KC2023 05 27.26811112 37 38.892+22 21 10.58 21.03GVEK187I52
K14L20Z KC2023 05 27.33276712 37 31.180+22 12 43.40 18.43GVEK187I52
K14L20Z KC2023 05 27.33567912 37 30.920+22 12 18.30 18.41GVEK187I52
K14L20Z 1C2023 05 28.34207412 35 57.127+20 03 40.93 21.07GVEK187G96
K14L20Z 1C2023 05 28.34667212 35 56.645+20 03 06.91 20.86GVEK187G96
K14L20Z 1C2023 05 28.34845012 35 56.454+20 02 53.30 20.74GVEK187G96
K14L20Z 1C2023 05 29.30282112 34 42.254+18 12 03.92 21.08GVEK187G96
K14L20Z 1C2023 05 29.30425212 34 42.107+18 11 53.92 21.32GVEK187G96
K14L20Z 1C2023 05 29.30568412 34 41.963+18 11 43.62 21.13GVEK187G96
K14L20Z 1C2023 05 29.30711412 34 41.833+18 11 34.33 21.33GVEK187G96
Observer details:
G96 Mt. Lemmon Survey. Observer G. J. Leonard. Measurers E. J. Christensen,
D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller,
J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L.
Seaman, A. Serrano, F. C. Shelly, K. W. Wierzchos. 1.5-m reflector + 10K
CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer A. Serrano. Measurers
E. J. Christensen, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D.
Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J.
Leonard, D. Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W.
Wierzchos. 1.0-m prime focus + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
230527 G96 39- 7- 230529 G96 33- 6- MPO477735 -4.29 days
Orbital elements:
2014 LZ20 Earth MOID = 0.0282 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 10.41501 (2000.0) P Q
n 1.52875431 Peri. 355.06396 +0.26156441 -0.95947760
a 0.7462957 Node 79.74453 +0.88914670 +0.19728276
e 0.4326460 Incl. 6.11473 +0.37550260 +0.20120201
P 0.64 H 24.41 G 0.15 U 2
Residuals in seconds of arc
140606 F51 0.0 0.2- 140608 F51 0.0 0.0 230527 I52 0.3+ 0.3+
140606 F51 0.2- 0.4- 140608 204 0.3- 0.3+ 230527 I52 (5.7+ 23.5+)
140606 F51 0.3+ 0.2+ 140608 204 0.1+ 0.2- 230527 I52 (6.9+ 22.3+)
140607 291 0.0 0.1- 140608 204 0.4+ 0.1+ 230528 G96 0.7+ 0.2-
140607 291 0.1- 0.1+ 230527 G96 0.0 0.4+ 230528 G96 0.2+ 0.1+
140607 291 0.1+ 0.0 230527 G96 0.7+ 0.3+ 230528 G96 0.0 0.3-
140607 J95 0.1- 0.3+ 230527 G96 0.1- 0.2+ 230529 G96 0.4+ 0.6+
140607 J95 0.0 0.0 230527 G96 0.4- 0.3- 230529 G96 0.1+ 0.3+
140607 J95 0.5+ 0.2+ 230527 I52 0.7+ 0.2- 230529 G96 0.1- 0.3-
140608 F51 0.3- 0.2- 230527 I52 0.3+ 0.2- 230529 G96 0.0 0.2+
140608 F51 0.1- 0.0 230527 I52 0.2- 0.2-
Ephemeris:
2014 LZ20 a,e,i = 0.75, 0.43, 6 q = 0.4234
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 04 29 23 40 44.0 +42 36 59 0.09958 0.9389 44.9 130.8 25.1
...
2023 05 14 15 35 48.4 +75 36 01 0.05186 1.0081 85.9 91.1 21.2
...
2023 05 22 12 52 41.4 +37 48 37 0.06507 1.0343 108.2 68.4 21.0
...
2023 05 28 12 36 32.6 +20 46 40 0.08853 1.0491 111.7 63.8 21.5
2023 05 29 12 35 09.4 +18 46 52 0.09295 1.0512 111.6 63.7 21.6
2023 05 30 12 33 59.0 +16 57 30 0.09746 1.0532 111.5 63.6 21.7
...
2023 06 05 12 30 01.2 +08 42 31 0.1258 1.0626 109.2 64.3 22.3
...
2023 06 13 12 29 23.4 +01 55 08 0.1650 1.0688 104.5 66.9 23.0
...
2023 06 28 12 34 47.6 -05 29 51 0.2364 1.0611 94.4 72.8 24.0
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-K187
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