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846 Lipperta (A916 WN)
Classification: Main-belt Asteroid          SPK-ID: 2000846
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1761724546595058 1.9366e-08  
a 3.13391934230923 1.0903e-08 au
q 2.581809079069709 6.2489e-08 au
i .2649185003923303 7.6477e-07 deg
node 260.8306884783858 0.00022443 deg
peri 129.7239862871459 0.00022611 deg
M 312.2299364051915 4.4685e-06 deg
tp 2459469.395458823113
(2021-Sep-11.89545882)
2.5423e-05 TDB
period 2026.423200886021
5.55
1.0575e-05
2.895e-08
d
yr
n .1776529205955577 9.271e-10 deg/d
Q 3.686029605548751 1.2824e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3863  
   data-arc span      38022 days (104.10 yr)  
   first obs. used      1916-11-16  
   last obs. used      2020-12-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40459  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 17:35:49  

Additional Information
 Earth MOID = 1.58617 au 
 Jupiter MOID = 1.76018 au 
 T_jup = 3.188 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456344.5 (2013-Feb-21.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1833953886639133 1.9736e-08  
q 2.552355467763068 6.4168e-08 au
tp 2455426.904774507739
(2010-Aug-18.40477451)
2.7026e-05 TDB
node 261.5673892564313 0.000227 deg
peri 129.1596955691944 0.00022858 deg
i .2640613361927145 7.6246e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3863  
   data-arc span      38022 days (104.10 yr)  
   first obs. used      1916-11-16  
   last obs. used      2020-12-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40459  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 17:35:49  

Additional Information
 Jupiter MOID = 1.76018 au 
 T_jup = 3.188 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.895092769833003E-16 -1.255287060059698E-15 1.153883378658297E-13 -4.15212060905143E-13 4.574827162749655E-13 7.281137515763384E-16
q -1.255287060059698E-15 4.11748693498994E-15 -4.895739535175251E-13 1.348846853856346E-12 -1.495137544435829E-12 -2.328273616879692E-15
tp 1.153883378658297E-13 -4.895739535175251E-13 7.303790193277822E-10 -1.398610419162741E-9 1.54652912215432E-9 5.027502715062581E-12
node -4.15212060905143E-13 1.348846853856346E-12 -1.398610419162741E-9 5.152940691804545E-8 -5.187208732310875E-8 -1.696208710543409E-10
peri 4.574827162749655E-13 -1.495137544435829E-12 1.54652912215432E-9 -5.187208732310875E-8 5.224945393572142E-8 1.708036458580801E-10
i 7.281137515763384E-16 -2.328273616879692E-15 5.027502715062581E-12 -1.696208710543409E-10 1.708036458580801E-10 5.813473240927643E-13

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 10.35   n/a MPCxxxxx IRAS observations used: 9
diameter diameter 52.41 km 1.4 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9
rotation period rot_per 1641. 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:
[Buchheim, R.K. (2011) Minor Planet Bull. 38, 151-153.]
geometric albedo albedo 0.0506   0.003 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9
B-V BV 0.610   0.040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=5.20 deg.
U-B UB 0.390   0.060 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=5.20 deg.
Tholen spectral type spec_T CBU:   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

846 Lipperta (A916 WN)          Discovered 1916-Nov-26 by Gyllenberg, K. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A916 WN = 1933 XF = 1943 QF = 1949 UB1 = 2019 FF5 = A912 AD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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