MPEC 2023-H121 : 2023 HQ2
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M.P.E.C. 2023-H121 Issued 2023 April 21, 11:40 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
2023 HQ2
Observations:
K23H02Q*1C2023 04 18.45659417 09 49.734-06 28 26.08 19.43GVEH121G96
K23H02Q 1C2023 04 18.46087117 09 49.619-06 28 18.55 VEH121G96
K23H02Q 1C2023 04 18.46939917 09 49.392-06 28 03.76 19.46GVEH121G96
K23H02Q 1C2023 04 18.49417817 09 48.683-06 27 20.27 19.44GVEH121G96
K23H02Q 1C2023 04 18.49797817 09 48.589-06 27 13.68 19.47GVEH121G96
K23H02Q 1C2023 04 18.49987317 09 48.524-06 27 10.37 19.51GVEH121G96
K23H02Q |C2023 04 19.23452 17 09 28.84 -06 05 27.4 19.7 VuEH121807
K23H02Q |C2023 04 19.23859 17 09 28.72 -06 05 20.2 19.6 VuEH121807
K23H02Q |C2023 04 19.24266 17 09 28.61 -06 05 12.2 20.0 VuEH121807
K23H02Q KC2023 04 19.32523917 09 26.19 -06 02 52.2 19.3 VuEH121H21
K23H02Q KC2023 04 19.32804417 09 26.12 -06 02 47.2 20.1 VuEH121H21
K23H02Q KC2023 04 19.33085017 09 26.02 -06 02 42.3 20.2 VuEH121H21
K23H02Q KC2023 04 19.34095617 09 25.73 -06 02 24.5 19.6 VuEH121H21
K23H02Q mC2023 04 19.34722017 09 25.650-06 02 13.09 19.44GVEH121I52
K23H02Q mC2023 04 19.35096917 09 25.502-06 02 05.82 VEH121I52
K23H02Q mC2023 04 19.36836817 09 25.013-06 01 35.72 18.61GVEH121I52
K23H02Q KC2023 04 20.05301517 09 04.76 -05 41 02.5 18.9 GXEH121C95
K23H02Q C2023 04 20.06567 17 09 04.38 -05 40 38.8 19.5 GVEH121511
K23H02Q KC2023 04 20.06972217 09 04.27 -05 40 31.2 18.6 GXEH121C95
K23H02Q C2023 04 20.07003 17 09 04.23 -05 40 31.0 19.5 GVEH121511
K23H02Q C2023 04 20.07367 17 09 04.11 -05 40 24.5 19.6 GVEH121511
K23H02Q KC2023 04 20.08642417 09 03.67 -05 40 01.1 19.0 GXEH121C95
K23H02Q |C2023 04 20.23878 17 08 59.16 -05 35 15.8 19.6 VuEH121807
K23H02Q |C2023 04 20.24297 17 08 59.02 -05 35 08.3 19.4 VuEH121807
K23H02Q |C2023 04 20.24716 17 08 58.87 -05 35 00.6 19.4 VuEH121807
K23H02Q C2023 04 20.25878517 08 58.514-05 34 39.61 19.35cVEH121W68
K23H02Q C2023 04 20.26060317 08 58.471-05 34 35.94 19.55cVEH121W68
K23H02Q C2023 04 20.26336617 08 58.421-05 34 31.22 19.47cVEH121W68
K23H02Q C2023 04 20.27628817 08 57.926-05 34 06.71 19.41cVEH121W68
K23H02Q hC2023 04 20.98962117 08 35.12 -05 12 19.2 19.7 GVEH121L01
K23H02Q hC2023 04 20.99214717 08 35.06 -05 12 14.6 19.7 GVEH121L01
K23H02Q hC2023 04 20.99467317 08 35.00 -05 12 09.5 20.1 GVEH121L01
K23H02Q hC2023 04 21.00284217 08 34.72 -05 11 54.6 19.8 GVEH121L01
K23H02Q KC2023 04 21.02617 17 08 33.88 -05 11 11.3 19.5 GXEH121G02
K23H02Q KC2023 04 21.03250 17 08 33.64 -05 10 59.8 19.4 GXEH121G02
K23H02Q KC2023 04 21.03917 17 08 33.40 -05 10 47.3 19.7 GXEH121G02
K23H02Q KC2023 04 21.39326 17 08 21.44 -04 59 43.5 19.6 VqEH121734
K23H02Q KC2023 04 21.39891 17 08 21.23 -04 59 32.5 19.9 VqEH121734
K23H02Q KC2023 04 21.40438 17 08 21.02 -04 59 22.4 20.2 VqEH121734
Observer details:
511 Haute Provence. Observers M. Birlan, A. Sonka. 1.20-m f/6 reflector +
CCD.
734 Farpoint Observatory, Eskridge. Observers D. Cromer, G. Hug, D. Goodin,
R. Valentine. Measurer D. Cromer. 0.70-m f/3.0 reflector + CCD.
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes, L.
Horn. 0.61-m f/6.5 Dall-Kirkham Astrograph + CCD.
C95 SATINO Remote Observatory, Haute Provence. Observer J. Jahn. 0.60-m
f/3.2 Newtonian reflector + CCD.
G02 KYSUCE Observatory, Kysucke Nove Mesto. Observer M. Urbanik. 0.40-m
f/5.5 Corrected Dall-Kirkham + CCD.
G96 Mt. Lemmon Survey. Observer J. K. Hogan. 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.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 0.81-m f/4.0 astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer R. A. Kowalski.
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.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
W68 ATLAS Chile, Rio Hurtado. Observers L. Denneau, R. Siverd, J. Tonry, H.
Weiland. Measurers L. Denneau, N. Erasmus, A. Fitzsimmons, A. Lawrence,
J. Robinson, R. Siverd, J. Tonry, H. Weiland. 0.5-m Reflector + CCD.
Orbital elements:
2023 HQ2 Earth MOID = 0.1931 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 328.51925 (2000.0) P Q
n 0.15744007 Peri. 135.63904 +0.65075786 +0.21070933
a 3.3967158 Node 232.22358 +0.11048781 +0.92421784
e 0.7983135 Incl. 67.35302 +0.75120347 -0.31846972
P 6.26 H 16.16 G 0.15 U 9
Residuals in seconds of arc
230418 G96 0.2- 0.2- 230419 I52 0.0 0.4- 230420 W68 0.4+ 0.2+
230418 G96 0.1- 0.1- 230419 I52 0.5- 0.2+ 230420 W68 1.0+ 0.1-
230418 G96 0.1+ 0.2- 230419 I52 0.1+ 0.7- 230420 W68 0.0 0.8+
230418 G96 0.0 0.1- 230420 C95 0.4- 0.7- 230420 L01 0.4- 0.2-
230418 G96 0.2+ 0.1- 230420 511 0.1+ 0.0 230420 L01 0.0 0.3-
230418 G96 0.0 0.1- 230420 C95 0.4+ 0.3+ 230420 L01 0.4+ 0.1+
230419 807 0.1- 0.0 230420 511 0.1- 0.1- 230421 L01 0.4+ 0.2-
230419 807 0.1- 0.1- 230420 511 0.1- 0.2- 230421 G02 0.4+ 0.0
230419 807 0.1+ 0.7+ 230420 C95 0.6- 0.0 230421 G02 0.1+ 0.3-
230419 H21 0.1+ 0.3+ 230420 807 0.0 0.0 230421 G02 0.0 0.2-
230419 H21 0.3+ 0.3+ 230420 807 0.0 0.2- 230421 734 0.1+ 0.0
230419 H21 0.1+ 0.2+ 230420 807 0.2- 0.1- 230421 734 0.0 0.4+
230419 H21 0.4+ 0.1- 230420 W68 0.1+ 0.1- 230421 734 0.2- 0.2+
Ephemeris:
2023 HQ2 a,e,i = 3.40, 0.80, 67 q = 0.6851
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 03 22 17 08 27.3 -16 01 59 2.0790 2.5015 103.2 22.8 20.8
...
2023 04 06 17 12 10.0 -11 38 50 1.7263 2.3554 117.0 22.2 20.3
...
2023 04 14 17 11 20.9 -08 31 02 1.5508 2.2752 124.6 21.3 19.9
...
2023 04 20 17 09 06.3 -05 42 35 1.4275 2.2140 130.3 20.2 19.7
2023 04 21 17 08 34.6 -05 11 56 1.4078 2.2037 131.2 20.0 19.6
2023 04 22 17 08 00.2 -04 40 32 1.3883 2.1933 132.2 19.9 19.6
...
2023 04 28 17 03 31.3 -01 15 07 1.2776 2.1308 137.5 18.6 19.3
...
2023 05 06 16 54 28.5 +04 06 23 1.1481 2.0459 143.0 17.2 18.9
...
2023 05 21 16 26 19.7 +16 23 24 0.9756 1.8818 142.4 19.1 18.5
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-H121
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