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2996 Bowman (1954 RJ)
Classification: Main-belt Asteroid          SPK-ID: 2002996
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03157861230475348 3.1853e-08  
a 2.781912642255957 1.092e-08 au
q 2.694063701460464 8.8176e-08 au
i 3.662036313502081 4.4254e-06 deg
node 334.2960256272789 5.0824e-05 deg
peri 300.8411017273079 8.9894e-05 deg
M 137.7499174232049 7.5419e-05 deg
tp 2458352.011161676335
(2018-Aug-21.51116168)
0.00035453 TDB
period 1694.781283093474
4.64
9.9794e-06
2.732e-08
d
yr
n .2124167900549941 1.2508e-09 deg/d
Q 2.869761583051451 1.1265e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2728  
   data-arc span      29907 days (81.88 yr)  
   first obs. used      1938-03-19  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46702  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:36:12  

Additional Information
 Earth MOID = 1.68003 au 
 Jupiter MOID = 2.16599 au 
 T_jup = 3.329 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456378.5 (2013-Mar-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03320602138156675 3.2379e-08  
q 2.689524444167208 8.995e-08 au
tp 2456670.033939171800
(2014-Jan-12.53393917)
0.00033419 TDB
node 334.4544865614646 5.072e-05 deg
peri 303.4987288428377 8.6496e-05 deg
i 3.666555135520134 4.4294e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2728  
   data-arc span      29907 days (81.88 yr)  
   first obs. used      1938-03-19  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46702  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:36:12  

Additional Information
 Jupiter MOID = 2.16599 au 
 T_jup = 3.329 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.04837151431065E-15 -2.892307216839556E-15 3.865601871963063E-12 1.796486421876461E-15 7.887019153447646E-13 -1.08473077386861E-16
q -2.892307216839556E-15 8.090967489084956E-15 -1.050305283796302E-11 -6.461335080184538E-15 -2.145915766476265E-12 5.014571924678909E-16
tp 3.865601871963063E-12 -1.050305283796302E-11 1.116828527753105E-7 2.013005506718308E-11 2.342255868754453E-8 -5.44162814334511E-12
node 1.796486421876461E-15 -6.461335080184538E-15 2.013005506718308E-11 2.572521694129322E-9 -2.562756521592468E-9 2.741778463367901E-11
peri 7.887019153447646E-13 -2.145915766476265E-12 2.342255868754453E-8 -2.562756521592468E-9 7.481571440933095E-9 -2.851635809749915E-11
i -1.08473077386861E-16 5.014571924678909E-16 -5.44162814334511E-12 2.741778463367901E-11 -2.851635809749915E-11 1.961970705018601E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.1   n/a MPO502182  
diameter diameter 20.381 km 0.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 12.829 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.067   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B Xc   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2996 Bowman (1954 RJ)          Discovered 1954-Sep-05 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1954 RJ = 1938 FO = 1940 RW = 1949 QW1 = 1956 AC = 1961 EE = 1977 RF3 = 1977 TC2 = 1984 BD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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