MPEC 2023-H29 : 2023 HE
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M.P.E.C. 2023-H29 Issued 2023 April 17, 11:12 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 HE Observations: K23H00E* C2023 04 16.16578914 30 56.218-19 01 16.00 19.07cVEH029W68 K23H00E C2023 04 16.16909114 30 57.547-18 59 57.23 17.97cVEH029W68 K23H00E C2023 04 16.17462014 30 59.868-18 57 43.16 19.22cVEH029W68 K23H00E C2023 04 16.18541714 31 04.145-18 53 25.30 18.84cVEH029W68 K23H00E KC2023 04 16.38857814 32 39.779-17 52 42.06 18.77GVEH029I52 K23H00E KC2023 04 16.38927214 32 39.955-17 52 28.67 18.73GVEH029I52 K23H00E KC2023 04 16.38996214 32 40.160-17 52 15.56 18.70GVEH029I52 K23H00E KC2023 04 16.39066114 32 40.355-17 52 02.06 18.74GVEH029I52 K23H00E KC2023 04 16.57418 14 34 25.89 -16 49 15.6 18.8 VqEH029E23 K23H00E KC2023 04 16.58807 14 34 28.52 -16 45 51.7 18.9 VqEH029E23 K23H00E KC2023 04 16.60196 14 34 31.06 -16 42 29.4 19.0 VqEH029E23 K23H00E KC2023 04 17.03058214 37 08.352-15 18 52.43 19.9 GXEH029Y00 K23H00E KC2023 04 17.04487014 37 09.918-15 16 43.15 19.6 GXEH029Y00 K23H00E KC2023 04 17.05916014 37 11.286-15 14 34.52 20.4 GXEH029Y00 K23H00E KC2023 04 17.07383714 37 12.530-15 12 22.94 20.0 GXEH029Y00 K23H00E KC2023 04 17.24011 14 37 32.41 -14 48 15.4 19.6 GVEH029W94 K23H00E KC2023 04 17.24640 14 37 32.67 -14 47 23.8 20.0 GVEH029W94 K23H00E KC2023 04 17.25267 14 37 32.90 -14 46 33.6 20.0 GVEH029W94 K23H00E |C2023 04 17.28514 14 37 35.96 -14 41 18.4 20.1 VuEH029807 K23H00E |C2023 04 17.28921 14 37 36.19 -14 40 46.1 19.9 VuEH029807 K23H00E |C2023 04 17.29329 14 37 36.39 -14 40 13.4 20.2 VuEH029807 K23H00E KC2023 04 17.32109 14 37 48.97 -14 44 25.3 19.9 VqEH029734 K23H00E KC2023 04 17.32473 14 37 49.18 -14 43 57.0 20.0 VqEH029734 K23H00E KC2023 04 17.32838 14 37 49.40 -14 43 28.9 20.0 VqEH029734 Observer details: 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. E23 Arcadia. Observer A. Hidas. 0.35-m f/1.9 reflector + CCD. I52 Steward Observatory, Mt. Lemmon Station. Observer J. B. Fazekas. 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. 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. W94 MAP, San Pedro de Atacama. Observers A. Maury, G. Attard. Measurers A. Maury, G. Attard, D. Parrott, F. Signoret. 0.28-m f/2.2 Schmidt astrograph + CCD. Y00 SONEAR Observatory, Oliveira. Observer C. Jacques. 0.45-m f/2.9 reflector + CCD. Orbital elements: 2023 HE Earth MOID = 0.0020 AU Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres M 357.35062 (2000.0) P Q n 0.33806760 Peri. 297.24723 -0.81136552 -0.58423341 a 2.0407996 Node 207.01664 +0.54994524 -0.75198861 e 0.6005955 Incl. 2.38499 +0.19810662 -0.30526130 P 2.92 H 27.64 G 0.15 U 7 Residuals in seconds of arc 230416 W68 0.2- 0.8+ 230416 E23 0.3+ 0.3+ 230417 W94 0.6+ 0.6+ 230416 W68 0.7- 0.4- 230416 E23 0.1+ 0.0 230417 W94 0.4+ 0.3- 230416 W68 0.2+ 0.4+ 230416 E23 0.1+ 0.0 230417 807 0.1- 0.1+ 230416 W68 0.0 0.2+ 230417 Y00 0.0 0.1- 230417 807 0.1+ 0.2- 230416 I52 0.2+ 0.0 230417 Y00 0.1+ 0.3- 230417 807 0.3- 0.0 230416 I52 0.1- 0.0 230417 Y00 0.1+ 0.4- 230417 734 0.1- 0.3+ 230416 I52 0.1+ 0.2- 230417 Y00 0.3+ 0.1- 230417 734 0.0 0.2+ 230416 I52 0.1+ 0.1- 230417 W94 0.3+ 0.3+ 230417 734 0.1+ 0.2- Ephemeris: 2023 HE a,e,i = 2.04, 0.60, 2 q = 0.8151 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2023 03 18 02 32 40.5 +09 03 44 0.2322 0.8378 42.2 127.0 29.5 ... 2023 04 02 02 44 53.8 +08 53 22 0.1032 0.9119 30.6 146.1 30.3 ... 2023 04 10 02 49 42.7 +07 05 10 0.03823 0.9668 24.2 154.9 30.0 ... 2023 04 16 14 28 22.8 -20 22 11 0.0099561.0128 163.2 16.6 18.5 2023 04 17 14 36 36.6 -15 25 25 0.01784 1.0208 164.8 14.9 19.8 2023 04 18 14 39 37.6 -13 30 25 0.02579 1.0289 165.5 14.1 20.6 ... 2023 04 24 14 43 25.6 -10 43 07 0.07408 1.0786 170.2 9.1 22.8 ... 2023 05 02 14 43 38.2 -10 06 18 0.1408 1.1478 174.5 4.8 24.1 ... 2023 05 17 14 43 58.1 -10 10 41 0.2782 1.2821 165.2 11.6 26.1 M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-H29


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