C/2010 R1 (LINEAR)
| Parameter |
Value |
| Designation |
C/2010 R1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2012-05-18T21:25:42.430080Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:45Z |
| Obs used |
1572 |
| NEO |
- |
| M1 |
6.500 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2012-06-07.0000000 |
| e |
1.00366507 |
| q (au) |
5.621418 |
| a (au) |
-1533.782641 |
| i (deg) |
156.933369 |
| Ω (om, deg) |
343.649659 |
| ω (w, deg) |
114.496039 |
| M (ma, deg) |
0.000314 |
Magnitude
Scatter + Global Linear
$$
M_a = (1.854 + 5.855\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
1.854 |
| n |
5.855 |
| gf |
0.966 |
| gb |
-0.535 |
| k |
1.000 |
| δ90 |
9.997 |
| Parameter |
Symbol |
Range |
Description |
| Absolute magnitude at 1 AU from Sun and Earth |
H0 |
-5 to 20 |
Intrinsic brightness of the comet |
| Photometric slope parameter |
n |
2 to 6 |
Rate of brightness change with heliocentric distance |
| Forward scattering asymmetry factor |
gf |
0.8 to 1 |
Degree of forward scattering |
| Backward scattering asymmetry factor |
gb |
-1 to -0.5 |
Degree of backward scattering |
| Partitioning coefficient |
k |
0.8 to 1 |
Ratio between forward/backward scattering contributions |
| Dust-to-gas brightness ratio |
δ90 |
1 to 10 |
Relative contribution of dust scattering to gas emission |
Reference: EPSC-DPS2025-160
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
06:51:17.79 |
+02:11:30.9 |
HIP 32898 |
3.20 |
| 2026-02-03 12:00 |
06:51:13.50 |
+02:11:47.4 |
HIP 32898 |
3.50 |
| 2026-02-04 00:00 |
06:51:09.23 |
+02:12:04.0 |
HIP 32898 |
4.09 |
| 2026-02-04 12:00 |
06:51:04.99 |
+02:12:20.8 |
HIP 32898 |
4.86 |
| 2026-02-05 00:00 |
06:51:00.77 |
+02:12:37.7 |
HIP 32898 |
5.73 |
| 2026-02-05 12:00 |
06:50:56.57 |
+02:12:54.7 |
HIP 32898 |
6.67 |
| 2026-02-06 00:00 |
06:50:52.39 |
+02:13:11.9 |
HIP 32898 |
7.64 |
| 2026-02-06 12:00 |
06:50:48.24 |
+02:13:29.2 |
HIP 32898 |
8.64 |
| 2026-02-07 00:00 |
06:50:44.12 |
+02:13:46.6 |
HIP 32898 |
9.64 |
| 2026-02-07 12:00 |
06:50:40.02 |
+02:14:04.1 |
HIP 32898 |
10.66 |
| 2026-02-08 00:00 |
06:50:35.94 |
+02:14:21.8 |
HIP 32898 |
11.68 |
| 2026-02-08 12:00 |
06:50:31.89 |
+02:14:39.6 |
HIP 32898 |
12.71 |
| 2026-02-09 00:00 |
06:50:27.87 |
+02:14:57.6 |
HIP 32898 |
13.73 |
| 2026-02-09 12:00 |
06:50:23.87 |
+02:15:15.6 |
HIP 32898 |
14.75 |
| 2026-02-10 00:00 |
06:50:19.89 |
+02:15:33.8 |
HIP 32898 |
15.77 |
| 2026-02-10 12:00 |
06:50:15.95 |
+02:15:52.1 |
HIP 32898 |
16.79 |
| 2026-02-11 00:00 |
06:50:12.02 |
+02:16:10.5 |
HIP 32898 |
17.80 |
| 2026-02-11 12:00 |
06:50:08.13 |
+02:16:29.1 |
HIP 32898 |
18.81 |
| 2026-02-12 00:00 |
06:50:04.27 |
+02:16:47.7 |
HIP 32898 |
19.82 |
| 2026-02-12 12:00 |
06:50:00.43 |
+02:17:06.5 |
HIP 32898 |
20.82 |
| 2026-02-13 00:00 |
06:49:56.62 |
+02:17:25.3 |
HIP 32898 |
21.81 |
| 2026-02-13 12:00 |
06:49:52.83 |
+02:17:44.3 |
HIP 32898 |
22.81 |
| 2026-02-14 00:00 |
06:49:49.08 |
+02:18:03.4 |
HIP 32661 |
23.44 |
| 2026-02-14 12:00 |
06:49:45.35 |
+02:18:22.6 |
HIP 32661 |
23.07 |
| 2026-02-15 00:00 |
06:49:41.65 |
+02:18:41.9 |
HIP 32661 |
22.75 |
| 2026-02-15 12:00 |
06:49:37.98 |
+02:19:01.3 |
HIP 32661 |
22.47 |
| 2026-02-16 00:00 |
06:49:34.35 |
+02:19:20.8 |
HIP 32661 |
22.24 |
| 2026-02-16 12:00 |
06:49:30.74 |
+02:19:40.4 |
HIP 32661 |
22.05 |
| 2026-02-17 00:00 |
06:49:27.16 |
+02:20:00.1 |
HIP 32661 |
21.91 |
| 2026-02-17 12:00 |
06:49:23.61 |
+02:20:19.9 |
HIP 32661 |
21.81 |
| 2026-02-18 00:00 |
06:49:20.09 |
+02:20:39.8 |
HIP 32661 |
21.76 |
| 2026-02-18 12:00 |
06:49:16.60 |
+02:20:59.8 |
HIP 32578 |
21.54 |
| 2026-02-19 00:00 |
06:49:13.14 |
+02:21:19.9 |
HIP 32578 |
20.63 |
| 2026-02-19 12:00 |
06:49:09.71 |
+02:21:40.0 |
HIP 32578 |
19.74 |
| 2026-02-20 00:00 |
06:49:06.31 |
+02:22:00.3 |
HIP 32578 |
18.85 |
| 2026-02-20 12:00 |
06:49:02.95 |
+02:22:20.6 |
HIP 32578 |
17.97 |
| 2026-02-21 00:00 |
06:48:59.62 |
+02:22:41.0 |
HIP 32578 |
17.10 |
| 2026-02-21 12:00 |
06:48:56.31 |
+02:23:01.5 |
HIP 32578 |
16.24 |
| 2026-02-22 00:00 |
06:48:53.04 |
+02:23:22.0 |
HIP 32578 |
15.39 |
| 2026-02-22 12:00 |
06:48:49.81 |
+02:23:42.7 |
HIP 32578 |
14.56 |
| 2026-02-23 00:00 |
06:48:46.60 |
+02:24:03.4 |
HIP 32578 |
13.74 |
| 2026-02-23 12:00 |
06:48:43.43 |
+02:24:24.2 |
HIP 32578 |
12.94 |
| 2026-02-24 00:00 |
06:48:40.29 |
+02:24:45.0 |
HIP 32578 |
12.15 |