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2774 Tenojoki (1942 TJ)
Classification: Main-belt Asteroid          SPK-ID: 2002774
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1403353992111017 3.5971e-08  
a 3.184879895748487 1.7508e-08 au
q 2.737928504139211 1.1488e-07 au
i 8.528166139951862 4.0505e-06 deg
node 290.9343883327692 2.7204e-05 deg
peri 108.0595245425792 3.1117e-05 deg
M 214.6873060069882 1.6737e-05 deg
tp 2459838.490450502067
(2022-Sep-15.99045050)
0.00010027 TDB
period 2076.050989703982
5.68
1.7118e-05
4.687e-08
d
yr
n .1734061455067302 1.4298e-09 deg/d
Q 3.631831287357763 1.9964e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2421  
   data-arc span      28521 days (78.09 yr)  
   first obs. used      1942-09-08  
   last obs. used      2020-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42779  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:06:11  

Additional Information
 Earth MOID = 1.76149 au 
 Jupiter MOID = 1.83576 au 
 T_jup = 3.166 
[ 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 11.3   n/a MPO347542  
diameter diameter 35.697 km 0.386 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.2 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.033   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2774 Tenojoki (1942 TJ)          Discovered 1942-Oct-03 by Oterma, L. at Turku
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
1901-Jan-19 09:25 00:03 Jupiter 1.878039514534 1.87803913301381 1.8780398960543 3.47277596429744 3.34038088694715 2415403.892168054 2.96990859417195 166.286371005817 15.3369107641878 87.3444872816707 3529170.94240986 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:06:18 2020-Nov-13 04:06
1912-Jan-27 06:36 00:03 Jupiter 1.91362935753235 1.91362884524982 1.91362986981651 2.84613328707418 2.68611657632049 2419428.774814964 2.65506811023313 135.946818074007 14.2305680021834 75.6879929940097 3105001.01768073 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:06:18 2020-Nov-13 04:06
1923-Jan-23 06:22 00:02 Jupiter 1.99734601258116 1.9973454209474 1.9973466042156 2.41746674514648 2.23517280339027 2423442.765324027 2.36393221578175 84.6740947297378 13.0340562226354 69.545918627538 3424346.33175871 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:06:18 2020-Nov-13 04:06
2032-Oct-06 21:22 < 00:01 Jupiter 1.93765499781365 1.93765461472358 1.93765538090372 4.1165261583845 4.00892900049092 2463512.390553356 0.529213329193098 65.1265046007123 16.9821811441411 86.8047388662789 4182617.36785673 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:06:18 2020-Nov-13 04:06
2043-Oct-10 08:10 < 00:01 Jupiter 1.85797349972685 1.85797313977613 1.85797385967769 3.65291135142089 3.52590287076264 2467532.840137865 0.817848405265307 69.1652959882362 13.7654780290196 82.8147546647802 3889423.30413431 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:06:18 2020-Nov-13 04:06
2054-Oct-21 21:53 00:01 Jupiter 1.87103737338956 1.87103689205832 1.87103785472144 3.13200610488737 2.98396683553639 2471562.411864758 1.17887752527939 80.9315579890309 12.7703738248912 74.790608185228 3520628.55768482 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:06:18 2020-Nov-13 04:06
2065-Oct-25 19:33 00:02 Jupiter 1.95686402313857 1.95686337237843 1.95686467389926 2.63357396318705 2.46374065805075 2475584.314342881 1.62312219629722 76.0257721696866 15.6006252041359 64.5062899950683 3381155.72840349 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:06:18 2020-Nov-13 04:06
2175-Jul-08 18:32 00:05 Jupiter 1.97358717781801 1.97358572622998 1.97358862941064 4.10440325796136 3.99847067701315 2515651.272052179 4.58501912354502 185.034946922673 28.3663721279475 70.2862592657761 2927292.61395674 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:06:18 2020-Nov-13 04:06
2186-Jul-03 03:02 00:05 Jupiter 1.84418446370156 1.84418377297179 1.84418515443427 3.72410374682899 3.59866101340627 2519663.626390426 4.60399242870429 162.199499500046 20.1898397920702 -82.8659048706329 3589531.11419109 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:06:18 2020-Nov-13 04:06
2197-Jul-15 07:19 00:05 Jupiter 1.82243966176073 1.8224389970809 1.82244032645484 3.33019445646786 3.18757700751639 2523693.804873381 4.82130438366174 300.185801870027 12.7130256851878 82.3392186818201 3562873.82910765 T 34 CATAB v2.0f-lin.ifort 2020-Nov-13 04:06:18 2020-Nov-13 04:06

Alternate Designations
 1942 TJ = 1948 TO1 = 1981 LE = 2000 XO55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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