MPEC 2023-H101 : 2023 HW1
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M.P.E.C. 2023-H101 Issued 2023 April 19, 11:28 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 HW1
Observations:
K23H01W*1C2023 04 18.21808011 14 41.669-02 50 39.84 19.79GVEH101G96
K23H01W 1C2023 04 18.22375211 14 38.440-02 50 59.28 20.21GVEH101G96
K23H01W 1C2023 04 18.22942011 14 35.192-02 51 19.12 19.69GVEH101G96
K23H01W 1C2023 04 18.23510811 14 31.974-02 51 38.23 20.07GVEH101G96
K23H01W C2023 04 18.26339411 14 15.452-02 53 17.92 20.0 GVEH101H01
K23H01W C2023 04 18.26955811 14 11.955-02 53 39.04 19.9 GVEH101H01
K23H01W C2023 04 18.27809111 14 07.108-02 54 08.38 19.9 GVEH101H01
K23H01W C2023 04 18.28447511 14 03.491-02 54 30.26 20.0 GVEH101H01
K23H01W KC2023 04 18.32678011 13 39.817-02 56 53.20 20.32GVEH101I52
K23H01W KC2023 04 18.32848011 13 38.856-02 56 59.35 20.24GVEH101I52
K23H01W KC2023 04 18.33018111 13 37.909-02 57 05.04 20.10GVEH101I52
K23H01W KC2023 04 18.33188311 13 36.959-02 57 10.94 20.08GVEH101I52
K23H01W KC2023 04 18.46144111 12 31.38 -03 01 59.7 20.2 RtEH101474
K23H01W KC2023 04 18.46383611 12 30.01 -03 02 08.0 20.1 RtEH101474
K23H01W KC2023 04 18.46623311 12 28.61 -03 02 16.6 20.2 RtEH101474
K23H01W KC2023 04 18.46862911 12 27.21 -03 02 24.2 19.5 RtEH101474
K23H01W KC2023 04 18.82110611 09 14.50 -03 27 13.4 19.5 GUEH101L06
K23H01W KC2023 04 18.82252711 09 13.62 -03 27 18.7 19.5 GUEH101L06
K23H01W KC2023 04 18.82442311 09 12.45 -03 27 25.9 19.6 GUEH101L06
K23H01W 2C2023 04 18.86244611 08 52.649-03 29 17.44 19.7 GVEH101J04
K23H01W |C2023 04 19.00239 11 07 31.26 -03 35 57.8 20.3 VuEH101807
K23H01W |C2023 04 19.00727 11 07 28.17 -03 36 16.0 20.4 VuEH101807
K23H01W |C2023 04 19.01215 11 07 25.06 -03 36 34.9 20.1 VuEH101807
K23H01W KC2023 04 19.07587911 06 45.98 -03 43 27.4 19.7 VuEH101H21
K23H01W KC2023 04 19.07867511 06 44.18 -03 43 38.7 19.8 VuEH101H21
K23H01W KC2023 04 19.08147011 06 42.39 -03 43 50.3 20.0 VuEH101H21
K23H01W KB2023 04 19.08530711 06 39.286-03 43 57.36 19.8 GXEH101W34
K23H01W KB2023 04 19.09290711 06 34.325-03 44 27.74 19.8 GXEH101W34
K23H01W KB2023 04 19.10115211 06 29.016-03 45 00.94 19.8 GXEH101W34
Observer details:
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore, P. M.
Kilmartin. Measurer P. M. Kilmartin. 1.0-m f/7.7 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.
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.
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 T. Linder, R. Holmes, L. Horn. 0.76-m f/3.0 astrograph + 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.
J04 ESA Optical Ground Station, Tenerife. Observers P. Ruiz, F. Ocana, M.
Micheli, L. Conversi. Measurers M. Micheli, F. Ocana, R. Kresken, M.
Busch, E. Schwab, A. Knofel. 1.0-m f/4.4 reflector + CCD.
L06 Sormano 2 Observatory, Bellagio Via Lattea. Observers E. Valli, G.
Ventre. Measurer P. Sicoli. 0.36m Schmidt Cassegrain + CCD.
W34 Squirrel Valley Observatory, Columbus. Observer R. L. Flynn. 0.36-m
f/1.9 Aplanatic Schmidt Cassegrain + CMO.
Orbital elements:
2023 HW1 Earth MOID = 0.0189 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 318.85714 (2000.0) P Q
n 0.42413892 Peri. 242.32002 -0.14531019 +0.98910787
a 1.7544081 Node 19.36736 -0.88099792 -0.11856219
e 0.4850343 Incl. 4.05739 -0.45025284 -0.08722745
P 2.32 H 24.60 G 0.15 U 8
Residuals in seconds of arc
230418 G96 0.2+ 0.2+ 230418 I52 0.0 0.0 230419 807 (0.1- 1.2-)
230418 G96 0.2+ 0.1+ 230418 I52 0.1+ 0.0 230419 807 0.2+ 0.3-
230418 G96 0.1- 0.4- 230418 474 0.6- 0.0 230419 807 0.3+ 0.1-
230418 G96 0.2+ 0.0 230418 474 0.3- 0.2+ 230419 H21 0.5- 0.6+
230418 H01 0.0 0.0 230418 474 0.3- 0.1+ 230419 H21 0.5- 0.4+
230418 H01 0.0 0.0 230418 474 0.4- 0.9+ 230419 H21 0.3- 0.1-
230418 H01 0.0 0.0 230418 L06 0.4+ 0.5+ 230419 W34 0.1- 0.5+
230418 H01 0.0 0.0 230418 L06 0.2+ 0.6+ 230419 W34 0.5- 0.3+
230418 I52 0.2- 0.1+ 230418 L06 0.1+ 0.6+ 230419 W34 0.3+ 0.1-
230418 I52 0.2- 0.2- 230418 J04 0.2+ 0.2-
Ephemeris:
2023 HW1 a,e,i = 1.75, 0.49, 4 q = 0.9035
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 03 20 12 31 11.8 +03 39 13 0.2592 1.2521 170.6 7.5 22.7
...
2023 04 04 12 13 10.0 +02 49 29 0.1508 1.1475 167.6 10.8 21.5
...
2023 04 12 11 50 58.0 +00 57 27 0.1007 1.0949 156.0 21.8 20.9
...
2023 04 18 11 16 34.4 -02 37 09 0.06640 1.0577 143.1 34.7 20.3
2023 04 19 11 07 29.0 -03 36 49 0.06104 1.0518 140.2 37.7 20.2
2023 04 20 10 56 44.8 -04 47 40 0.05584 1.0459 136.9 41.0 20.0
...
2023 04 26 08 39 39.0 -18 03 57 0.03118 1.0122 100.6 77.7 19.8
...
2023 05 04 03 19 50.4 -20 59 34 0.04522 0.9728 37.9 140.5 24.7
...
2023 05 19 01 38 28.9 -11 07 32 0.1305 0.9205 43.0 131.4 25.9
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-H101
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