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372 Palma (A893 QB)
Classification: Main-belt Asteroid          SPK-ID: 2000372
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 88 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2572821657430599 3.4517e-08  
a 3.154192353403595 7.5564e-09 au
q 2.342674913549719 1.0856e-07 au
i 23.83004572426338 4.8585e-06 deg
node 327.296116029281 1.0343e-05 deg
peri 115.6337059878273 1.4539e-05 deg
M 197.7878030515835 9.1955e-06 deg
tp 2460122.459182646932
(2023-Jun-26.95918265)
5.4372e-05 TDB
period 2046.118060150813
5.60
7.3528e-06
2.013e-08
d
yr
n .1759429267602797 6.3225e-10 deg/d
Q 3.965709793257472 9.5006e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2582  
   data-arc span      46406 days (127.05 yr)  
   first obs. used      1893-08-22  
   last obs. used      2020-09-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43516  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:46:56  

Additional Information
 Earth MOID = 1.45463 au 
 Jupiter MOID = 1.57272 au 
 T_jup = 3.026 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455604.5 (2011-Feb-12.0) TDB
Reference: JPL 88 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2613096349418972 3.4497e-08  
q 2.325434310949883 1.0903e-07 au
tp 2456036.457094673088
(2012-Apr-18.95709467)
4.6607e-05 TDB
node 327.4632781546542 1.035e-05 deg
peri 115.5732685584408 1.4386e-05 deg
i 23.85132663775313 4.8613e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2582  
   data-arc span      46406 days (127.05 yr)  
   first obs. used      1893-08-22  
   last obs. used      2020-09-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43516  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:46:56  

Additional Information
 Jupiter MOID = 1.57272 au 
 T_jup = 3.026 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.190023242660434E-15 -3.756549731165762E-15 1.417783634448203E-13 2.166501915474005E-16 4.653024271921539E-14 -4.393208758411591E-15
q -3.756549731165762E-15 1.188773668142266E-14 -3.771034290025617E-13 4.653490157094437E-15 -1.358314602333912E-13 1.655252181946001E-14
tp 1.417783634448203E-13 -3.771034290025617E-13 2.172172661279623E-9 -7.928279652662416E-12 4.826862691896801E-10 1.461590038582436E-12
node 2.166501915474005E-16 4.653490157094437E-15 -7.928279652662416E-12 1.071126016562538E-10 -9.924272837687111E-11 4.991994161723196E-12
peri 4.653024271921539E-14 -1.358314602333912E-13 4.826862691896801E-10 -9.924272837687111E-11 2.069564959518496E-10 -4.564508387563024E-12
i -4.393208758411591E-15 1.655252181946001E-14 1.461590038582436E-12 4.991994161723196E-12 -4.564508387563024E-12 2.363271757252768E-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 7.46   n/a E2021B10  
diameter diameter 173.642 km 2.840 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 8.567 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Zappala, V.; Scaltriti, F.; Di Martino, M. (1983) Icarus 56, 325-344.]
[Piironen, J.; Lagerkvist, C.-I.; Erikson, A.; Oja, T.; et al. (1998) Astron. Astrophys. Suppl. Ser. 128, 525-540.]
[Torppa, J.; Kaasalainen, M.; Michalowski, T.; Kwiatkowski, T.; et al. (2003) Icarus 164, 346-383.]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Kaasalainen, M.; Herald, D.; Dunham, D.; et al. (2011) Icarus 214, 652-670.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Colazo, M.; Fornari, C.; Santucho, M.; Mottino, A.; et al. (2020) Minor Planet Bull. 47, 188-191.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.059   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
Tholen spectral type spec_T BFC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a medium resolution spectrum published by Chapman and Gaffey (1979)
SMASSII spectral type spec_B B   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)

372 Palma (A893 QB)          Discovered 1893-Aug-19 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A893 QB = 1940 CN = 1949 SP1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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