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1250 Galanthus (1933 BD)
Classification: Main-belt Asteroid          SPK-ID: 2001250
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2743934287241522 2.078e-08  
a 2.550519970185629 9.7035e-09 au
q 1.850674050536972 5.2266e-08 au
i 15.1763912602443 4.8329e-07 deg
node 291.9816899380093 1.576e-06 deg
peri 217.4438323376943 2.0755e-06 deg
M 179.3707838598245 4.2185e-06 deg
tp 2458459.205590906798
(2018-Dec-06.70559091)
1.4177e-05 TDB
period 1487.789602804571
4.07
8.4905e-06
2.325e-08
d
yr
n .241969697409754 1.3809e-09 deg/d
Q 3.250365889834286 1.2366e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2384  
   data-arc span      32108 days (87.91 yr)  
   first obs. used      1933-01-25  
   last obs. used      2020-12-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37738  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 12:22:34  

Additional Information
 Earth MOID = .885039 au 
 Jupiter MOID = 1.89589 au 
 T_jup = 3.340 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457090.5 (2015-Mar-09.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2729671214797084 2.0725e-08  
q 1.854115942349222 5.2136e-08 au
tp 2456968.579415116313
(2014-Nov-07.07941512)
1.0197e-05 TDB
node 292.0303861049365 1.5761e-06 deg
peri 217.0888854121314 2.0847e-06 deg
i 15.17459633343984 4.8384e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2384  
   data-arc span      32108 days (87.91 yr)  
   first obs. used      1933-01-25  
   last obs. used      2020-12-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37738  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 12:22:34  

Additional Information
 Jupiter MOID = 1.89589 au 
 T_jup = 3.340 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.295089819770434E-16 -1.071249532580833E-15 1.332449238376239E-13 1.005907085353021E-14 -1.495892654784247E-14 -1.980562269947627E-15
q -1.071249532580833E-15 2.718136084469749E-15 -3.271223560309776E-13 -2.51305382781324E-14 4.122116420633285E-14 4.940894179583827E-15
tp 1.332449238376239E-13 -3.271223560309776E-13 1.039723676228149E-10 9.493358465422527E-12 6.856168411237032E-12 -1.549298214274768E-12
node 1.005907085353021E-14 -2.51305382781324E-14 9.493358465422527E-12 2.48407100438924E-12 -5.9741477614825E-13 -3.42294213958221E-13
peri -1.495892654784247E-14 4.122116420633285E-14 6.856168411237032E-12 -5.9741477614825E-13 4.345890306702652E-12 1.526385303619826E-13
i -1.980562269947627E-15 4.940894179583827E-15 -1.549298214274768E-12 -3.42294213958221E-13 1.526385303619826E-13 2.340982421995901E-13

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 12.45   n/a E2021B10 IRAS observations used: 3
diameter diameter 20.062 km 0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.92 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Binzel, R.P.; Mulholland, J.D. (1983) Icarus 56, 519-533.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.055   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1250 Galanthus (1933 BD)          Discovered 1933-Jan-25 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
1902-Jul-17 11:45 00:01 Jupiter 1.91334267765245 1.91334216381493 1.91334319150368 3.97412810312091 3.86112795886164 2415947.989566909 1.45142303828162 263.597352789198 4.11905416785768 85.1596636377353 24308915.4671431 T 37 CATAB v2.0f-lin.ifort 2021-Mar-16 12:23:47 2021-Mar-16 12:23
1914-Dec-09 00:55 00:01 Jupiter 1.8970435442614 1.89704317330343 1.89704391522228 3.48553836676636 3.35499411861874 2420475.538288473 1.29640369729246 150.519465975975 11.8310404122122 -82.0036403986244 26113828.7076855 T 37 CATAB v2.0f-lin.ifort 2021-Mar-16 12:23:47 2021-Mar-16 12:23
2032-Oct-26 18:46 < 00:01 Jupiter 1.98361028071981 1.98361003040729 1.98361053103334 4.0800351963025 3.9739987549348 2463532.281801242 0.256697521891055 73.7297950558943 1.08985831975531 81.0058512407571 25376424.9437298 T 37 CATAB v2.0f-lin.ifort 2021-Mar-16 12:23:47 2021-Mar-16 12:23
2045-Mar-20 11:59 < 00:01 Jupiter 1.8981327776777 1.89813260449406 1.89813295086208 3.60919606070663 3.48336281102067 2468059.998994428 0.446628554657202 79.6375102509217 5.49573300524063 86.5018794317715 25799750.8264793 T 37 CATAB v2.0f-lin.ifort 2021-Mar-16 12:23:47 2021-Mar-16 12:23
2057-Aug-21 00:01 < 00:01 Jupiter 1.96133564764191 1.96133534395133 1.96133595133282 2.88033175751474 2.7262778523655 2472596.500731512 0.715848250090023 80.0501514900598 16.455537658928 -77.5535579463574 11210713.5777951 T 37 CATAB v2.0f-lin.ifort 2021-Mar-16 12:23:47 2021-Mar-16 12:23
2175-Jun-29 07:51 00:02 Jupiter 1.92897056298786 1.92896984834203 1.92897127766197 3.73373856386276 3.6142207592626 2515641.827205841 2.11477349503345 378.859106548451 4.17217698798075 85.7467271321096 24139171.9236618 T 37 CATAB v2.0f-lin.ifort 2021-Mar-16 12:23:47 2021-Mar-16 12:23
2187-Nov-25 11:34 00:02 Jupiter 1.91473508277291 1.91473455058248 1.91473561497683 3.09085172905033 2.94425257106069 2520173.981771565 2.40525505189263 285.294432772801 12.3183246261509 -80.7893199332112 19173968.9837423 T 37 CATAB v2.0f-lin.ifort 2021-Mar-16 12:23:47 2021-Mar-16 12:23

Alternate Designations
 1933 BD = 1971 OQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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