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43904 (1995 WO)
Classification: Main-belt Asteroid          SPK-ID: 2043904
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2771850283928695 2.5174e-08  
a 2.380979369634882 6.0148e-09 au
q 1.7210075354598 6.0256e-08 au
i 8.236166023767641 3.5087e-06 deg
node 197.7824590282202 2.142e-05 deg
peri 139.5897407703344 2.2383e-05 deg
M 39.29772352491352 7.3918e-06 deg
tp 2459250.013781619509
(2021-Feb-04.51378162)
2.7234e-05 TDB
period 1341.936221408458
3.67
5.085e-06
1.392e-08
d
yr
n .2682690833265938 1.0165e-09 deg/d
Q 3.040951203809963 7.682e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1505  
   data-arc span      10569 days (28.94 yr)  
   first obs. used      1991-09-12  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50249  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:23:49  

Additional Information
 Earth MOID = .721619 au 
 Jupiter MOID = 2.4087 au 
 T_jup = 3.472 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457278.5 (2015-Sep-13.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2762429778090177 2.511e-08  
q 1.724991787936841 6.0063e-08 au
tp 2457908.233908442852
(2017-Jun-03.73390844)
2.4968e-05 TDB
node 197.8363005145385 2.1449e-05 deg
peri 139.5190980678742 2.2415e-05 deg
i 8.226136763169164 3.5053e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1505  
   data-arc span      10569 days (28.94 yr)  
   first obs. used      1991-09-12  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50249  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:23:49  

Additional Information
 Jupiter MOID = 2.4087 au 
 T_jup = 3.472 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.305117573973234E-16 -1.504177918367181E-15 9.018925399575913E-14 -4.053065434650471E-15 3.541368174574185E-14 -1.389396612584599E-15
q -1.504177918367181E-15 3.607521447979394E-15 -1.702313647935288E-13 8.187325224325856E-15 -7.488434594166769E-14 3.334096896576364E-15
tp 9.018925399575913E-14 -1.702313647935288E-13 6.233842259261596E-10 -9.691758439198737E-13 1.706523721903593E-10 9.843518339880163E-13
node -4.053065434650471E-15 8.187325224325856E-15 -9.691758439198737E-13 4.600439841297125E-10 -4.549415318339669E-10 1.352198111130949E-11
peri 3.541368174574185E-14 -7.488434594166769E-14 1.706523721903593E-10 -4.549415318339669E-10 5.024523433177571E-10 -1.314333375146179E-11
i -1.389396612584599E-15 3.334096896576364E-15 9.843518339880163E-13 1.352198111130949E-11 -1.314333375146179E-11 1.228693801606536E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.15   n/a E2021B10  
rotation period rot_per 200. h n/a LCDB (Rev. 2020-October); 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:
[Pravec, P.; Wolf, M.; Sarounova, L. (2013) http://www.asu.cas.cz/~ppravec/neo.htm]

43904 (1995 WO)          Discovered 1995-Nov-16 by Urata, T. at Oohira
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 WO = 1991 RH34 = 1998 KQ34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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