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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1771883825954428 3.2748e-08  
a 3.137050281344458 1.3031e-08 au
q 2.581201415872455 1.0435e-07 au
i .2657401559909787 3.577e-06 deg
node 261.0056753459673 0.00081225 deg
peri 129.3587421005049 0.00081232 deg
M 277.0138599857383 1.1566e-05 deg
tp 2459468.325305789534
(2021-Sep-10.82530579)
6.6825e-05 TDB
period 2029.460703381179
5.56
1.2645e-05
3.462e-08
d
yr
n .1773870267111961 1.1053e-09 deg/d
Q 3.692899146816461 1.534e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3847  
   data-arc span      37986 days (104.00 yr)  
   first obs. used      1916-11-16  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40488  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:56:33  

Additional Information
 Earth MOID = 1.58668 au 
 Jupiter MOID = 1.75276 au 
 T_jup = 3.187 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456161.5 (2012-Aug-22.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1836523904622237 3.2807e-08  
q 2.550876017329575 1.0488e-07 au
tp 2455426.933636304688
(2010-Aug-18.43363630)
5.5122e-05 TDB
node 261.6089142498911 0.00081935 deg
peri 129.0682456345371 0.00081941 deg
i .2640003831562259 3.581e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3847  
   data-arc span      37986 days (104.00 yr)  
   first obs. used      1916-11-16  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40488  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:56:33  

Additional Information
 Jupiter MOID = 1.75276 au 
 T_jup = 3.187 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.076316747159332E-15 -3.424844491250985E-15 -1.86760606283415E-13 -2.178817228741866E-15 -3.110863701569719E-14 1.028960298875124E-17
q -3.424844491250985E-15 1.099903630002013E-14 6.798854703570863E-13 1.347194759576545E-14 1.13298728362718E-13 -3.13144277616443E-18
tp -1.86760606283415E-13 6.798854703570863E-13 3.038422068381248E-9 -8.019999471489708E-12 5.64673292455409E-10 5.248233544665656E-14
node -2.178817228741866E-15 1.347194759576545E-14 -8.019999471489708E-12 6.713349308003136E-7 -6.713282834946927E-7 -4.568176369457593E-11
peri -3.110863701569719E-14 1.13298728362718E-13 5.64673292455409E-10 -6.713282834946927E-7 6.714310294351074E-7 4.569545969033862E-11
i 1.028960298875124E-17 -3.13144277616443E-18 5.248233544665656E-14 -4.568176369457593E-11 4.569545969033862E-11 1.282343194740863E-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 10.3   n/a MPO492759 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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