| 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) |
| 2026-05-12 00:00 |
11:03:37.71 |
-15:01:42.3 |
HIP 53988 |
17.22 |
| 2026-05-12 12:00 |
11:03:33.63 |
-15:00:27.6 |
HIP 53988 |
15.70 |
| 2026-05-13 00:00 |
11:03:29.62 |
-14:59:13.2 |
HIP 53988 |
14.22 |
| 2026-05-13 12:00 |
11:03:25.68 |
-14:57:59.0 |
HIP 53988 |
12.78 |
| 2026-05-14 00:00 |
11:03:21.80 |
-14:56:45.1 |
HIP 53988 |
11.38 |
| 2026-05-14 12:00 |
11:03:18.00 |
-14:55:31.5 |
HIP 53988 |
10.05 |
| 2026-05-15 00:00 |
11:03:14.26 |
-14:54:18.1 |
HIP 53988 |
8.79 |
| 2026-05-15 12:00 |
11:03:10.59 |
-14:53:05.1 |
HIP 53988 |
7.65 |
| 2026-05-16 00:00 |
11:03:06.99 |
-14:51:52.3 |
HIP 53988 |
6.68 |
| 2026-05-16 12:00 |
11:03:03.45 |
-14:50:39.9 |
HIP 53988 |
5.94 |
| 2026-05-17 00:00 |
11:02:59.99 |
-14:49:27.7 |
HIP 53988 |
5.52 |
| 2026-05-17 12:00 |
11:02:56.59 |
-14:48:15.8 |
HIP 53988 |
5.48 |
| 2026-05-18 00:00 |
11:02:53.27 |
-14:47:04.3 |
HIP 53988 |
5.82 |
| 2026-05-18 12:00 |
11:02:50.01 |
-14:45:53.0 |
HIP 53988 |
6.47 |
| 2026-05-19 00:00 |
11:02:46.82 |
-14:44:42.1 |
HIP 53988 |
7.35 |
| 2026-05-19 12:00 |
11:02:43.70 |
-14:43:31.5 |
HIP 53988 |
8.36 |
| 2026-05-20 00:00 |
11:02:40.65 |
-14:42:21.2 |
HIP 53988 |
9.47 |
| 2026-05-20 12:00 |
11:02:37.67 |
-14:41:11.3 |
HIP 53988 |
10.64 |
| 2026-05-21 00:00 |
11:02:34.76 |
-14:40:01.6 |
HIP 53988 |
11.85 |
| 2026-05-21 12:00 |
11:02:31.91 |
-14:38:52.4 |
HIP 53988 |
13.07 |
| 2026-05-22 00:00 |
11:02:29.14 |
-14:37:43.4 |
HIP 53988 |
14.31 |
| 2026-05-22 12:00 |
11:02:26.43 |
-14:36:34.9 |
HIP 53988 |
15.56 |
| 2026-05-23 00:00 |
11:02:23.80 |
-14:35:26.6 |
HIP 53988 |
16.80 |
| 2026-05-23 12:00 |
11:02:21.23 |
-14:34:18.7 |
HIP 53988 |
18.05 |
| 2026-05-24 00:00 |
11:02:18.73 |
-14:33:11.2 |
HIP 53988 |
19.29 |
| 2026-05-24 12:00 |
11:02:16.30 |
-14:32:04.1 |
HIP 53988 |
20.53 |
| 2026-05-25 00:00 |
11:02:13.94 |
-14:30:57.3 |
HIP 53988 |
21.75 |
| 2026-05-25 12:00 |
11:02:11.65 |
-14:29:50.8 |
HIP 53988 |
22.97 |
| 2026-05-26 00:00 |
11:02:09.43 |
-14:28:44.8 |
HIP 53988 |
24.18 |
| 2026-05-26 12:00 |
11:02:07.27 |
-14:27:39.1 |
HIP 53988 |
25.39 |
| 2026-05-27 00:00 |
11:02:05.19 |
-14:26:33.8 |
HIP 53988 |
26.58 |
| 2026-05-27 12:00 |
11:02:03.17 |
-14:25:28.8 |
HIP 53988 |
27.76 |
| 2026-05-28 00:00 |
11:02:01.22 |
-14:24:24.3 |
HIP 53988 |
28.93 |
| 2026-05-28 12:00 |
11:01:59.34 |
-14:23:20.1 |
HIP 53988 |
30.09 |
| 2026-05-29 00:00 |
11:01:57.53 |
-14:22:16.3 |
HIP 53778 |
30.92 |
| 2026-05-29 12:00 |
11:01:55.79 |
-14:21:13.0 |
HIP 53778 |
29.99 |
| 2026-05-30 00:00 |
11:01:54.12 |
-14:20:10.0 |
HIP 53778 |
29.09 |
| 2026-05-30 12:00 |
11:01:52.51 |
-14:19:07.4 |
HIP 53778 |
28.22 |
| 2026-05-31 00:00 |
11:01:50.97 |
-14:18:05.2 |
HIP 53778 |
27.39 |
| 2026-05-31 12:00 |
11:01:49.50 |
-14:17:03.4 |
HIP 53778 |
26.60 |
| 2026-06-01 00:00 |
11:01:48.10 |
-14:16:02.0 |
HIP 53778 |
25.84 |
| 2026-06-01 12:00 |
11:01:46.77 |
-14:15:01.0 |
HIP 53778 |
25.13 |
| 2026-06-02 00:00 |
11:01:45.50 |
-14:14:00.5 |
HIP 53778 |
24.46 |