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JPL Small-Body Database Browser
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1843 Jarmila (1972 AB)
Classification: Main-belt Asteroid          SPK-ID: 2001843
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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1691902339161276 3.603e-08  
a 2.653698148907229 9.3978e-09 au
q 2.20471833835082 9.6132e-08 au
i 8.416178005454151 3.8081e-06 deg
node 266.9016801848487 3.0158e-05 deg
peri 32.37785731899733 3.2406e-05 deg
M 157.8781557729107 1.3014e-05 deg
tp 2457908.039104630110
(2017-Jun-03.53910463)
5.6317e-05 TDB
period 1578.976655210802
4.32
8.3876e-06
2.296e-08
d
yr
n .2279957710659997 1.2111e-09 deg/d
Q 3.102677959463637 1.0988e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2595  
   data-arc span      30771 days (84.25 yr)  
   first obs. used      1935-08-29  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44494  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:27:40  

Additional Information
 Earth MOID = 1.19334 au 
 Jupiter MOID = 2.10943 au 
 T_jup = 3.353 
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Orbital Elements at Epoch 2455949.5 (2012-Jan-23.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1713476037470727 3.6219e-08  
q 2.197907777180517 9.6904e-08 au
tp 2456326.217385202457
(2013-Feb-02.71738520)
5.4095e-05 TDB
node 267.1192521791677 3.0091e-05 deg
peri 31.54982733580802 3.2266e-05 deg
i 8.429622509080239 3.8133e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2595  
   data-arc span      30771 days (84.25 yr)  
   first obs. used      1935-08-29  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44494  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:27:40  

Additional Information
 Jupiter MOID = 2.10943 au 
 T_jup = 3.353 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.311815548690061E-15 -3.498620546206331E-15 4.189048444075252E-13 9.484722022053895E-15 8.417420017900088E-14 -1.127815569340254E-15
q -3.498620546206331E-15 9.39046357244586E-15 -1.09383190668593E-12 -2.655682279339734E-14 -2.230788496835145E-13 3.298654056650193E-15
tp 4.189048444075252E-13 -1.09383190668593E-12 2.926299012572201E-9 1.138066443735248E-11 6.558519723069605E-10 9.948336433359727E-13
node 9.484722022053895E-15 -2.655682279339734E-14 1.138066443735248E-11 9.054385489597576E-10 -8.92511444517302E-10 5.137908079110472E-12
peri 8.417420017900088E-14 -2.230788496835145E-13 6.558519723069605E-10 -8.92511444517302E-10 1.041116099350195E-9 -4.890786530083853E-12
i -1.127815569340254E-15 3.298654056650193E-15 9.948336433359727E-13 5.137908079110472E-12 -4.890786530083853E-12 1.454135846595376E-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 11.9   n/a MPO452186  
diameter diameter 28.965 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.434 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Benishek, V. (2018) Minor Planet Bull. 45, 82-91.]
geometric albedo albedo 0.045   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1843 Jarmila (1972 AB)          Discovered 1972-Jan-14 by Kohoutek, L. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1972 AB = 1935 PD = 1952 MU = 1952 OV = 1965 OF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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