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393 Lampetia (A894 VC)
Classification: Main-belt Asteroid          SPK-ID: 2000393
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 116 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3303781411345597 1.8399e-08  
a 2.780472597687093 4.9852e-09 au
q 1.861865229387651 5.036e-08 au
i 14.87320256308147 7.2606e-07 deg
node 212.4276558698025 1.4129e-06 deg
peri 90.75356982108286 2.2997e-06 deg
M 153.6680428244505 2.1704e-06 deg
tp 2458477.634637661131
(2018-Dec-25.13463766)
8.7631e-06 TDB
period 1693.465509541759
4.64
4.5544e-06
1.247e-08
d
yr
n .2125818317359258 5.7172e-10 deg/d
Q 3.699079965986535 6.6322e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3034  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      42910 days (117.48 yr)  
   first obs. used      1903-09-21  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36455  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:49:25  

Additional Information
 Earth MOID = .916632 au 
 Jupiter MOID = 1.91496 au 
 T_jup = 3.205 
[ show covariance matrix ]

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 8.41   n/a E2021B10 IRAS observations used: 7
diameter diameter 116.191 km 27.770 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 38.455 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Scaltriti, F.; Zappala, V.; Schober, H.J. (1979) Icarus 37, 133-141.]
[Holliday, B. (2001) Minor Planet Bull. 28, 26-28.]
[Pilcher, F.; Marciniak, A.; Oey, J. (2017) Minor Planet Bull. 44, 238.]
geometric albedo albedo 0.022   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
B-V BV 0.740   0.026 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=14.24, mean=16.70, max.=20.76) deg.
U-B UB 0.324   0.039 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=14.24, mean=14.67, max.=15.10) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B Xc   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

393 Lampetia (A894 VC)          Discovered 1894-Nov-04 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1918-Dec-31 02:41 < 00:01 Jupiter 1.88924237730357 1.88924218510649 1.88924256950107 2.34778093907558 2.1483472202145 2421958.611779405 0.780870504516236 124.911526667414 14.02314285019 77.8851113556145 8819802.28248959 T 116 CATAB v2.0f-lin.ifort 2021-Apr-12 10:50:33 2021-Apr-12 10:50
2002-Aug-16 13:05 < 00:01 Jupiter 1.95500475823344 1.95500459220709 1.95500492445182 0.954810118541971 0.212474183128446 2452503.044881125 0.13797013983358 8926.73183203215 365.406022709407 38.9453233178419 31364837.4377728 T 116 CATAB v2.0f-lin.ifort 2021-Apr-12 10:50:33 2021-Apr-12 10:50
2025-Feb-23 08:06 < 00:01 Jupiter 1.94004307536916 1.94004293295378 1.94004321778464 3.2974978193289 3.16232385646852 2460729.837687990 0.109351515798137 30.8034742642642 2.97772561315183 -81.5886678334915 12338975.1783731 T 116 CATAB v2.0f-lin.ifort 2021-Apr-12 10:50:33 2021-Apr-12 10:50
2108-Sep-18 17:17 < 00:01 Jupiter 1.91017422839142 1.91017406849979 1.91017438828413 2.18289385691175 1.96930747265803 2491252.220025375 0.792867728125555 147.889856144821 12.5497052454199 78.5722371610109 8197318.99039912 T 116 CATAB v2.0f-lin.ifort 2021-Apr-12 10:50:33 2021-Apr-12 10:50
2192-May-11 05:31 00:02 Jupiter 1.94527929872702 1.94527902456344 1.94527957290394 0.67565900208707 n/a 2521802.729652099 1.67982487156277 344.310498934338 9.22019348548483 -88.3193070141852 31540860.7143501 F 116 CATAB v2.0f-lin.ifort 2021-Apr-12 10:50:33 2021-Apr-12 10:50

Alternate Designations
 A894 VC = A907 GR 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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