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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1761724542185092 1.9324e-08  
a 3.133919344817786 1.085e-08 au
q 2.581809082518374 6.2298e-08 au
i .2649185327478659 7.637e-07 deg
node 260.8306823458555 0.00022409 deg
peri 129.7239922060648 0.00022571 deg
M 312.2299363997716 4.4212e-06 deg
tp 2459469.395459176479
(2021-Sep-11.89545918)
2.5179e-05 TDB
period 2026.423203319107
5.55
1.0524e-05
2.881e-08
d
yr
n .1776529203822533 9.2259e-10 deg/d
Q 3.686029607117198 1.2762e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3928  
   data-arc span      38022 days (104.10 yr)  
   first obs. used      1916-11-16  
   last obs. used      2020-12-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40161  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 11:48:13  

Additional Information
 Earth MOID = 1.58617 au 
 Jupiter MOID = 1.76018 au 
 T_jup = 3.188 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .183320476997438 1.9687e-08  
q 2.552760908793565 6.3961e-08 au
tp 2455426.872735923317
(2010-Aug-18.37273592)
2.6544e-05 TDB
node 261.5499403487055 0.00022656 deg
peri 129.1862042351125 0.00022809 deg
i .2641103677963053 7.6168e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3928  
   data-arc span      38022 days (104.10 yr)  
   first obs. used      1916-11-16  
   last obs. used      2020-12-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40161  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 11:48:13  

Additional Information
 Jupiter MOID = 1.76018 au 
 T_jup = 3.188 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.875929169018402E-16 -1.248180438158244E-15 1.083181001020444E-13 -4.004073209182105E-13 4.411280332792845E-13 6.808512171752137E-16
q -1.248180438158244E-15 4.090990783923099E-15 -4.62877167248335E-13 1.293354783856512E-12 -1.433806880242144E-12 -2.150286124300545E-15
tp 1.083181001020444E-13 -4.62877167248335E-13 7.045828739904333E-10 -1.344959445241222E-9 1.487248138677857E-9 4.856480369646194E-12
node -4.004073209182105E-13 1.293354783856512E-12 -1.344959445241222E-9 5.132875053795327E-8 -5.165963593279892E-8 -1.691088191398612E-10
peri 4.411280332792845E-13 -1.433806880242144E-12 1.487248138677857E-9 -5.165963593279892E-8 5.202397630460343E-8 1.702540867631994E-10
i 6.808512171752137E-16 -2.150286124300545E-15 4.856480369646194E-12 -1.691088191398612E-10 1.702540867631994E-10 5.801600751085309E-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 10.34   n/a E2021B10 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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