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3881 Doumergua (1925 VF)
Classification: Main-belt Asteroid          SPK-ID: 2003881
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .149356541527435 2.8345e-08  
a 2.44840440163954 7.7262e-09 au
q 2.082719187950109 7.1084e-08 au
i 3.608364109379176 3.5239e-06 deg
node 37.08873512829594 5.0175e-05 deg
peri 40.73867443567218 5.1831e-05 deg
M 286.7655768405909 1.4742e-05 deg
tp 2459485.166209569684
(2021-Sep-27.66620957)
5.7946e-05 TDB
period 1399.339696060946
3.83
6.6237e-06
1.813e-08
d
yr
n .2572641946865207 1.2177e-09 deg/d
Q 2.814089615328971 8.8802e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2552  
   data-arc span      34764 days (95.18 yr)  
   first obs. used      1925-11-15  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45298  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:13:58  

Additional Information
 Earth MOID = 1.09917 au 
 Jupiter MOID = 2.4286 au 
 T_jup = 3.479 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457107.5 (2015-Mar-26.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1509549298687664 2.8563e-08  
q 2.078280067910796 7.1824e-08 au
tp 2456683.631535382226
(2014-Jan-26.13153538)
5.1641e-05 TDB
node 37.2394600493791 5.0039e-05 deg
peri 39.97561388781812 5.1657e-05 deg
i 3.614415865699161 3.5282e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2552  
   data-arc span      34764 days (95.18 yr)  
   first obs. used      1925-11-15  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45298  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:13:58  

Additional Information
 Jupiter MOID = 2.4286 au 
 T_jup = 3.479 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.158348633994177E-16 -2.04345528617943E-15 -3.194030949315508E-13 4.173716022015852E-15 -8.411330223368976E-14 -3.172089202691081E-18
q -2.04345528617943E-15 5.158639439358054E-15 8.867018332916534E-13 -1.063599949176084E-14 2.333682415621132E-13 1.526995633600068E-16
tp -3.194030949315508E-13 8.867018332916534E-13 2.666770141403238E-9 -9.712288066054696E-12 6.724226344123425E-10 1.222434415993306E-12
node 4.173716022015852E-15 -1.063599949176084E-14 -9.712288066054696E-12 2.503899011009154E-9 -2.500976505919784E-9 -2.877072228681371E-11
peri -8.411330223368976E-14 2.333682415621132E-13 6.724226344123425E-10 -2.500976505919784E-9 2.668469375521514E-9 2.902113158345901E-11
i -3.172089202691081E-18 1.526995633600068E-16 1.222434415993306E-12 -2.877072228681371E-11 2.902113158345901E-11 1.244829154372592E-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 13.07   n/a E2021B10  
diameter diameter 10.988 km 2.453 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 3.582 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.069   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

3881 Doumergua (1925 VF)          Discovered 1925-Nov-15 by Jekhowsky, B. at Algiers
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1925 VF = 1980 BC1 = 1982 SE = 1986 TP3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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