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207901 Tzecmaun (2008 US91)
Classification: Main-belt Asteroid          SPK-ID: 2207901
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1222216840400132 5.1157e-08  
a 3.060583288957889 3.2674e-08 au
q 2.686513645236734 1.5931e-07 au
i 9.982748936542865 5.0526e-06 deg
node 70.39603656680745 3.4364e-05 deg
peri 241.6257593650416 4.1587e-05 deg
M 178.3256844508649 2.6254e-05 deg
tp 2458231.740153614033
(2018-Apr-23.24015361)
0.00013924 TDB
period 1955.711235725228
5.35
3.1318e-05
8.574e-08
d
yr
n .1840762549316248 2.9477e-09 deg/d
Q 3.434652932679044 3.6668e-08 au
  Orbit Determination Parameters
   # obs. used (total)      318  
   data-arc span      7236 days (19.81 yr)  
   first obs. used      2001-05-18  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52632  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:20:01  

Additional Information
 Earth MOID = 1.68789 au 
 Jupiter MOID = 1.83786 au 
 T_jup = 3.199 
[ 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 15.68   n/a MPCxxxxx  
diameter diameter 5.146 km 1.209 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

207901 Tzecmaun           Discovered 2008 Oct. 28 by E. Schwab at Tzec Maun.
The Tzec Maun Foundation provides free access to remote-controlled telescopes. Pronounced "Teh-Zeck-Moan", the name is one of the words used by the ancient Mayan people for the planet Mercury. This is the first minor planet discovered at an observatory of the Tzec Maun Foundation to be numbered.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090409/MPCPages.arcLast Updated: 2009-04-10

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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
1918-Oct-04 00:12 00:05 Jupiter 1.82531242785505 1.82531182909297 1.8253130266247 3.1097090270252 2.95672204762612 2421870.508310277 4.69567608550625 259.031242222214 12.5536284505806 -81.1597942315124 2485776.93122276 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 23:20:02 2021-Apr-13 23:20
1967-Jul-07 12:07 00:03 Jupiter 1.98177197785306 1.98177094287407 1.98177301283453 2.47836993812653 2.29945738410141 2439679.004669216 2.49591876638953 141.144701949898 9.11330443978794 -68.4299650040833 2267927.7307809 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 23:20:02 2021-Apr-13 23:20
1977-Jan-27 03:52 00:02 Jupiter 1.88339692529166 1.88339628868972 1.88339756189369 3.73143518168265 3.6088981634089 2443170.661328334 1.84985954876916 93.7422414256569 25.1804827095674 -84.1640696675021 2286443.6420475 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 23:20:02 2021-Apr-13 23:20
2025-Oct-13 18:39 < 00:01 Jupiter 1.84985248533257 1.84985200051415 1.84985297015131 2.9383186528686 2.77811869295864 2460962.277096723 0.519163783853386 78.1398574244803 11.6948364441284 -76.3238243775351 2473107.60345494 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 23:20:02 2021-Apr-13 23:20
2084-Feb-04 20:35 00:03 Jupiter 1.8666088526577 1.86660807359405 1.86660963172135 3.61969039490906 3.49207765197335 2482260.357869604 3.2282918463084 104.493991252777 30.147249323804 87.7740290938247 1884381.99190453 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 23:20:02 2021-Apr-13 23:20
2132-Oct-27 03:24 00:06 Jupiter 1.87800791078979 1.87800678399797 1.87800903759857 2.73644527654341 2.56633769183718 2500056.641880658 5.78371895836232 319.535688682871 10.6950357242366 -74.1470411918696 2320594.90938248 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 23:20:02 2021-Apr-13 23:20
2191-Feb-15 03:47 00:08 Jupiter 1.85686236778441 1.85686137815674 1.85686335742126 3.4621612597518 3.32779877848075 2521351.657684796 8.32626563730154 275.326809227839 22.4654921914028 87.4448295989757 1995008.80099574 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 23:20:02 2021-Apr-13 23:20

Alternate Designations
 2008 US91 = 2006 FU35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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