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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1923876098936093 3.881e-08  
a 3.21888003626018 1.5916e-08 au
q 2.59960739954983 1.2654e-07 au
i 16.49252088392963 4.0298e-06 deg
node .6575824266577877 1.3732e-05 deg
peri 303.0554061459768 1.6377e-05 deg
M 228.1832968378579 1.0981e-05 deg
tp 2459972.866730777417
(2023-Jan-28.36673078)
6.5725e-05 TDB
period 2109.38383687119
5.78
1.5645e-05
4.283e-08
d
yr
n .1706659516904146 1.2658e-09 deg/d
Q 3.83815267297053 1.8978e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2972  
   data-arc span      32613 days (89.29 yr)  
   first obs. used      1931-10-05  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39465  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:53:41  

Additional Information
 Earth MOID = 1.62591 au 
 Jupiter MOID = 1.73521 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 10.86   n/a E2021B10  
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. 2020-October); 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

[ 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
1980-Jul-27 07:15 < 00:01 Jupiter 1.92100051411229 1.92099984033083 1.92100118791547 4.58749382542169 4.49035009921977 2444447.802297724 0.875654402135247 458.062015642091 20.8566637259865 86.9264100860396 3351325.98495686 T 46 CATAB v2.0f-lin.ifort 2021-Feb-24 00:53:47 2021-Feb-24 00:53
1991-Oct-26 04:24 < 00:01 Jupiter 1.77460514543565 1.77460467087416 1.7746056200039 4.03557950709483 3.91552014886981 2448555.683186719 0.599851516197744 336.470996073361 16.399647609188 87.3954074134572 3262783.02932613 T 46 CATAB v2.0f-lin.ifort 2021-Feb-24 00:53:47 2021-Feb-24 00:53
2003-Jan-29 10:47 < 00:01 Jupiter 1.75260671360787 1.75260620980009 1.75260721741835 3.38218731859817 3.23614046426483 2452668.949316343 0.417133057312853 418.172155575305 19.9428656633561 87.9988386291077 2840723.55112335 T 46 CATAB v2.0f-lin.ifort 2021-Feb-24 00:53:47 2021-Feb-24 00:53
2014-Mar-24 00:35 < 00:01 Jupiter 1.8337362823771 1.83373569873661 1.83373686601749 2.16558164202382 1.94059844704118 2456740.524048791 0.50090277596213 468.700697705514 44.7248685771516 83.6557824621244 1513159.9431917 T 46 CATAB v2.0f-lin.ifort 2021-Feb-24 00:53:47 2021-Feb-24 00:53
2025-Jan-02 13:03 < 00:01 Jupiter 1.93711798412873 1.93711735323258 1.93711861502554 1.78632225753262 1.52198191732859 2460678.043533043 0.594962523434656 172.982620093404 58.4315693604973 46.7949278076463 2859129.06832742 T 46 CATAB v2.0f-lin.ifort 2021-Feb-24 00:53:47 2021-Feb-24 00:53
2035-Dec-21 00:44 < 00:01 Jupiter 1.99085556018734 1.99085503002506 1.99085609035029 4.3276891223401 4.22823604616632 2464682.530821099 0.624908457200591 121.958103455595 21.2953494045801 -84.6637541430842 2888427.5935114 T 46 CATAB v2.0f-lin.ifort 2021-Feb-24 00:53:47 2021-Feb-24 00:53
2146-Oct-21 02:09 00:02 Jupiter 1.90906166624563 1.90906044930901 1.90906288325529 4.59913249324812 4.5016273920293 2505163.589354979 1.74058645736793 708.812615058695 29.4705745967625 85.9450731703732 2712728.40068433 T 46 CATAB v2.0f-lin.ifort 2021-Feb-24 00:53:47 2021-Feb-24 00:53
2158-Jan-24 01:07 00:02 Jupiter 1.74003868357005 1.74003792805571 1.74003943909211 4.21301895311804 4.09584682879997 2509276.546264000 1.80290224894817 287.691439832387 23.4606837726511 85.0314471706754 2257539.11182103 T 46 CATAB v2.0f-lin.ifort 2021-Feb-24 00:53:47 2021-Feb-24 00:53
2169-May-11 12:33 00:02 Jupiter 1.70057232509364 1.70057183468232 1.70057281551096 3.77477854065256 3.64043834217282 2513402.023152345 2.07281170379499 318.96700290856 17.5805302633034 86.435553785769 2756182.03593619 T 46 CATAB v2.0f-lin.ifort 2021-Feb-24 00:53:47 2021-Feb-24 00:53
2180-Aug-04 01:39 00:03 Jupiter 1.7928525624137 1.79285144701137 1.79285367804746 3.03379640098894 2.87385325192846 2517504.569085158 2.93744136043388 1346.18527298889 36.9438601595342 86.6961763589279 2608189.00970555 T 46 CATAB v2.0f-lin.ifort 2021-Feb-24 00:53:47 2021-Feb-24 00:53
2191-Jul-03 06:16 00:05 Jupiter 1.96232529239579 1.96232403526795 1.96232654981866 1.27298484183777 0.870175784518855 2521489.761164103 5.26270720432566 1941.90493229327 218.49636330817 62.1225567371673 1818986.14770248 T 46 CATAB v2.0f-lin.ifort 2021-Feb-24 00:53:47 2021-Feb-24 00:53

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