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1227 Geranium (1931 TD)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001227
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1923021059570599 3.9343e-08  
a 3.219331452740965 1.6075e-08 au
q 2.600247234605076 1.2796e-07 au
i 16.49001031478963 4.034e-06 deg
node .6641475517267115 1.402e-05 deg
peri 302.9962707300605 1.6648e-05 deg
M 194.1231862502639 1.0941e-05 deg
tp 2459972.642991814444
(2023-Jan-28.14299181)
6.5773e-05 TDB
period 2109.8275831438
5.78
1.5803e-05
4.327e-08
d
yr
n .1706300566340939 1.278e-09 deg/d
Q 3.838415670876854 1.9166e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2805  
   data-arc span      32384 days (88.66 yr)  
   first obs. used      1931-10-05  
   last obs. used      2020-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40216  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:28:05  

Additional Information
 Earth MOID = 1.62847 au 
 Jupiter MOID = 1.73484 au 
 T_jup = 3.097 
[ 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 10.8   n/a MPO344305  
diameter diameter 46.269 km 0.140 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 12.363 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Albers, K.; Kragh, K.; Monnier, A.; Pligge, Z.; et al. (2010) Minor Planet Bull. 37, 152-158.]
geometric albedo albedo 0.071   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1227 Geranium (1931 TD)          Discovered 1931-Oct-05 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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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
1980-Jul-27 07:15 < 00:01 Jupiter 1.92100051713231 1.9209998424763 1.92100119181006 4.58749388093526 4.49035015608869 2444447.802304531 0.877357656699506 458.555330667165 20.8760172541639 86.9254444524742 3346463.8019125 T 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:28:18 2020-Jun-23 15:28
1991-Oct-26 04:24 < 00:01 Jupiter 1.77460514859863 1.77460466902266 1.77460562818146 4.03557958003349 3.91552022426222 2448555.683191326 0.600790986884485 337.560410869185 16.5470233423764 87.3668660881241 3249736.09662487 T 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:28:18 2020-Jun-23 15:28
2003-Jan-29 10:47 < 00:01 Jupiter 1.75260672028107 1.75260620763284 1.7526072329323 3.38218735354001 3.23614050135222 2452668.949314133 0.417188126081347 420.608146154687 20.3018705184553 87.9539446315031 2824280.37328296 T 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:28:18 2020-Jun-23 15:28
2014-Mar-24 00:35 < 00:01 Jupiter 1.83373629614569 1.83373570443671 1.83373688785446 2.16558145755987 1.94059824297861 2456740.524026442 0.507118719448435 476.015521257185 45.593817651888 83.6301602182779 1495463.76078093 T 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:28:18 2020-Jun-23 15:28
2025-Jan-02 13:03 < 00:01 Jupiter 1.93711800226685 1.93711736927361 1.93711863526076 1.78632245821225 1.52198215555268 2460678.043515638 0.604905799867525 176.936191770792 58.4808185072776 46.6392410057553 2832494.47990778 T 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:28:18 2020-Jun-23 15:28
2035-Dec-21 00:44 < 00:01 Jupiter 1.99085557472385 1.99085504200015 1.99085610744823 4.32768916310055 4.22823608862021 2464682.530811382 0.630754793477099 122.271456120108 21.5357920395796 -84.7335865893713 2843606.30099936 T 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:28:18 2020-Jun-23 15:28
2146-Oct-21 02:09 00:02 Jupiter 1.9090616479828 1.90906042599231 1.90906287004687 4.59913253347999 4.50162743218972 2505163.589340122 1.74887510409974 710.887034900928 29.5357801688244 85.9371261389435 2709415.42912891 T 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:28:18 2020-Jun-23 15:28
2158-Jan-24 01:07 00:02 Jupiter 1.74003867848156 1.74003791966067 1.74003943731037 4.21301895683328 4.09584683227394 2509276.546242486 1.81132880761803 290.055022885969 23.4653001021082 85.0289589133169 2255109.26713452 T 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:28:18 2020-Jun-23 15:28
2169-May-11 12:33 00:02 Jupiter 1.70057233664865 1.70057183580422 1.70057283749946 3.7747783741942 3.64043817050143 2513402.023112753 2.08298291744361 321.69578410801 17.8166177461385 86.3708205143758 2732777.29014449 T 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:28:18 2020-Jun-23 15:28
2180-Aug-04 01:39 00:03 Jupiter 1.79285259201148 1.79285146364106 1.7928537206213 3.03379616854101 2.87385300925767 2517504.569038206 2.95298461067362 1362.13531632395 37.0787239952481 86.7002820057341 2566999.59308579 T 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:28:18 2020-Jun-23 15:28
2191-Jul-03 06:16 00:05 Jupiter 1.96232532614978 1.9623240594162 1.96232659318353 1.2729848054598 0.870175739833722 2521489.761096932 5.28844569894949 1952.25791165401 225.001355366049 62.2539222081439 1771171.99397232 T 41 CATAB v2.0f-lin.ifort 2020-Jun-23 15:28:18 2020-Jun-23 15:28

Alternate Designations
 1931 TD = 1934 CL1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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