C/2002 CE10 (LINEAR)
| Parameter |
Value |
| Designation |
C/2002 CE10 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2003-06-22T02:22:09.416640Z |
| Orbit solution date (soln_date, UTC) |
2025-09-09T12:42:31Z |
| Obs used |
821 |
| NEO |
- |
| M1 |
13.500 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2003-06-22.0000000 |
| e |
0.79148441 |
| q (au) |
2.046759 |
| a (au) |
9.815858 |
| i (deg) |
145.458691 |
| Ω (om, deg) |
147.443946 |
| ω (w, deg) |
126.188143 |
| M (ma, deg) |
359.996836 |
Magnitude
Scatter + Global Linear
$$
M_a = (11.514 + 4.943\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
11.514 |
| n |
4.943 |
| gf |
1.000 |
| gb |
-0.532 |
| k |
0.800 |
| δ90 |
10.000 |
| 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 |
11:29:02.34 |
-18:28:51.4 |
HIP 56082 |
10.36 |
| 2026-02-03 12:00 |
11:28:55.11 |
-18:28:30.9 |
HIP 56082 |
11.85 |
| 2026-02-04 00:00 |
11:28:47.83 |
-18:28:09.8 |
HIP 56082 |
13.41 |
| 2026-02-04 12:00 |
11:28:40.49 |
-18:27:48.1 |
HIP 56082 |
15.02 |
| 2026-02-05 00:00 |
11:28:33.11 |
-18:27:25.7 |
HIP 56082 |
16.68 |
| 2026-02-05 12:00 |
11:28:25.67 |
-18:27:02.7 |
HIP 55894 |
15.17 |
| 2026-02-06 00:00 |
11:28:18.19 |
-18:26:39.1 |
HIP 55894 |
13.60 |
| 2026-02-06 12:00 |
11:28:10.66 |
-18:26:14.9 |
HIP 55894 |
12.09 |
| 2026-02-07 00:00 |
11:28:03.08 |
-18:25:50.1 |
HIP 55894 |
10.68 |
| 2026-02-07 12:00 |
11:27:55.45 |
-18:25:24.6 |
HIP 55894 |
9.41 |
| 2026-02-08 00:00 |
11:27:47.78 |
-18:24:58.6 |
HIP 55894 |
8.37 |
| 2026-02-08 12:00 |
11:27:40.06 |
-18:24:31.9 |
HIP 55894 |
7.65 |
| 2026-02-09 00:00 |
11:27:32.29 |
-18:24:04.5 |
HIP 55894 |
7.36 |
| 2026-02-09 12:00 |
11:27:24.48 |
-18:23:36.6 |
HIP 55894 |
7.57 |
| 2026-02-10 00:00 |
11:27:16.63 |
-18:23:08.0 |
HIP 55894 |
8.24 |
| 2026-02-10 12:00 |
11:27:08.73 |
-18:22:38.8 |
HIP 55894 |
9.28 |
| 2026-02-11 00:00 |
11:27:00.79 |
-18:22:09.0 |
HIP 55894 |
10.59 |
| 2026-02-11 12:00 |
11:26:52.81 |
-18:21:38.6 |
HIP 55894 |
12.08 |
| 2026-02-12 00:00 |
11:26:44.78 |
-18:21:07.5 |
HIP 55894 |
13.71 |
| 2026-02-12 12:00 |
11:26:36.72 |
-18:20:35.9 |
HIP 55894 |
15.43 |
| 2026-02-13 00:00 |
11:26:28.61 |
-18:20:03.6 |
HIP 55894 |
17.23 |
| 2026-02-13 12:00 |
11:26:20.46 |
-18:19:30.7 |
HIP 55894 |
19.08 |
| 2026-02-14 00:00 |
11:26:12.28 |
-18:18:57.1 |
HIP 55894 |
20.97 |
| 2026-02-14 12:00 |
11:26:04.05 |
-18:18:23.0 |
HIP 55740 |
21.45 |
| 2026-02-15 00:00 |
11:25:55.79 |
-18:17:48.2 |
HIP 55740 |
20.97 |
| 2026-02-15 12:00 |
11:25:47.49 |
-18:17:12.9 |
HIP 55740 |
20.69 |
| 2026-02-16 00:00 |
11:25:39.16 |
-18:16:36.9 |
HIP 55740 |
20.61 |
| 2026-02-16 12:00 |
11:25:30.78 |
-18:16:00.3 |
HIP 55740 |
20.76 |
| 2026-02-17 00:00 |
11:25:22.38 |
-18:15:23.1 |
HIP 55740 |
21.11 |
| 2026-02-17 12:00 |
11:25:13.94 |
-18:14:45.3 |
HIP 55740 |
21.67 |
| 2026-02-18 00:00 |
11:25:05.46 |
-18:14:06.8 |
HIP 55608 |
22.38 |
| 2026-02-18 12:00 |
11:24:56.96 |
-18:13:27.8 |
HIP 55608 |
20.60 |
| 2026-02-19 00:00 |
11:24:48.42 |
-18:12:48.2 |
HIP 55608 |
18.87 |
| 2026-02-19 12:00 |
11:24:39.85 |
-18:12:07.9 |
HIP 55608 |
17.24 |
| 2026-02-20 00:00 |
11:24:31.25 |
-18:11:27.1 |
HIP 55608 |
15.72 |
| 2026-02-20 12:00 |
11:24:22.62 |
-18:10:45.7 |
HIP 55608 |
14.37 |
| 2026-02-21 00:00 |
11:24:13.96 |
-18:10:03.7 |
HIP 55608 |
13.24 |
| 2026-02-21 12:00 |
11:24:05.28 |
-18:09:21.0 |
HIP 55608 |
12.39 |
| 2026-02-22 00:00 |
11:23:56.56 |
-18:08:37.8 |
HIP 55608 |
11.89 |
| 2026-02-22 12:00 |
11:23:47.82 |
-18:07:54.1 |
HIP 55608 |
11.80 |
| 2026-02-23 00:00 |
11:23:39.06 |
-18:07:09.7 |
HIP 55608 |
12.11 |
| 2026-02-23 12:00 |
11:23:30.27 |
-18:06:24.7 |
HIP 55608 |
12.82 |
| 2026-02-24 00:00 |
11:23:21.45 |
-18:05:39.2 |
HIP 55608 |
13.86 |