| Parameter |
Value |
| Designation |
241P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2010-07-17T08:34:46.513920Z |
| Orbit solution date (soln_date, UTC) |
2022-05-06T00:43:04Z |
| Obs used |
874 |
| NEO |
- |
| M1 |
14.300 |
| K1 |
7.250 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2015-01-18.0000000 |
| e |
0.60991749 |
| q (au) |
1.932371 |
| a (au) |
4.953749 |
| i (deg) |
20.868312 |
| Ω (om, deg) |
305.806635 |
| ω (w, deg) |
110.525675 |
| M (ma, deg) |
147.108792 |
Magnitude
Scatter + Global Linear
$$
M_a = (12.777 + 3.761\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
12.777 |
| n |
3.761 |
| gf |
1.000 |
| gb |
-0.932 |
| k |
1.000 |
| 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 |
14:44:01.49 |
-40:21:13.1 |
HIP 72086 |
14.18 |
| 2026-05-12 12:00 |
14:43:45.35 |
-40:20:04.3 |
HIP 72086 |
15.51 |
| 2026-05-13 00:00 |
14:43:29.25 |
-40:18:54.4 |
HIP 72086 |
17.36 |
| 2026-05-13 12:00 |
14:43:13.17 |
-40:17:43.7 |
HIP 72086 |
19.58 |
| 2026-05-14 00:00 |
14:42:57.14 |
-40:16:32.0 |
HIP 71950 |
21.04 |
| 2026-05-14 12:00 |
14:42:41.15 |
-40:15:19.4 |
HIP 71950 |
22.44 |
| 2026-05-15 00:00 |
14:42:25.21 |
-40:14:05.8 |
HIP 71950 |
24.22 |
| 2026-05-15 12:00 |
14:42:09.31 |
-40:12:51.4 |
HIP 71950 |
26.29 |
| 2026-05-16 00:00 |
14:41:53.45 |
-40:11:36.1 |
HIP 71950 |
28.61 |
| 2026-05-16 12:00 |
14:41:37.65 |
-40:10:20.0 |
HIP 71742 |
29.08 |
| 2026-05-17 00:00 |
14:41:21.90 |
-40:09:02.9 |
HIP 71742 |
29.11 |
| 2026-05-17 12:00 |
14:41:06.21 |
-40:07:45.1 |
HIP 71742 |
29.51 |
| 2026-05-18 00:00 |
14:40:50.57 |
-40:06:26.3 |
HIP 71590 |
28.85 |
| 2026-05-18 12:00 |
14:40:34.99 |
-40:05:06.8 |
HIP 71590 |
25.59 |
| 2026-05-19 00:00 |
14:40:19.47 |
-40:03:46.4 |
HIP 71590 |
22.34 |
| 2026-05-19 12:00 |
14:40:04.02 |
-40:02:25.2 |
HIP 71590 |
19.10 |
| 2026-05-20 00:00 |
14:39:48.62 |
-40:01:03.3 |
HIP 71590 |
15.87 |
| 2026-05-20 12:00 |
14:39:33.30 |
-39:59:40.5 |
HIP 71590 |
12.65 |
| 2026-05-21 00:00 |
14:39:18.05 |
-39:58:17.0 |
HIP 71590 |
9.45 |
| 2026-05-21 12:00 |
14:39:02.86 |
-39:56:52.7 |
HIP 71590 |
6.31 |
| 2026-05-22 00:00 |
14:38:47.75 |
-39:55:27.7 |
HIP 71590 |
3.36 |
| 2026-05-22 12:00 |
14:38:32.72 |
-39:54:01.9 |
HIP 71590 |
1.90 |
| 2026-05-23 00:00 |
14:38:17.76 |
-39:52:35.5 |
HIP 71590 |
4.08 |
| 2026-05-23 12:00 |
14:38:02.88 |
-39:51:08.3 |
HIP 71590 |
7.09 |
| 2026-05-24 00:00 |
14:37:48.08 |
-39:49:40.4 |
HIP 71590 |
10.21 |
| 2026-05-24 12:00 |
14:37:33.36 |
-39:48:11.9 |
HIP 71590 |
13.36 |
| 2026-05-25 00:00 |
14:37:18.72 |
-39:46:42.7 |
HIP 71429 |
15.11 |
| 2026-05-25 12:00 |
14:37:04.17 |
-39:45:12.8 |
HIP 71429 |
12.13 |
| 2026-05-26 00:00 |
14:36:49.71 |
-39:43:42.3 |
HIP 71429 |
9.28 |
| 2026-05-26 12:00 |
14:36:35.34 |
-39:42:11.1 |
HIP 71429 |
6.70 |
| 2026-05-27 00:00 |
14:36:21.05 |
-39:40:39.4 |
HIP 71429 |
4.85 |
| 2026-05-27 12:00 |
14:36:06.86 |
-39:39:07.0 |
HIP 71429 |
4.67 |
| 2026-05-28 00:00 |
14:35:52.76 |
-39:37:34.0 |
HIP 71429 |
6.29 |
| 2026-05-28 12:00 |
14:35:38.75 |
-39:36:00.5 |
HIP 71429 |
8.74 |
| 2026-05-29 00:00 |
14:35:24.84 |
-39:34:26.4 |
HIP 71429 |
11.51 |
| 2026-05-29 12:00 |
14:35:11.03 |
-39:32:51.7 |
HIP 71429 |
14.40 |
| 2026-05-30 00:00 |
14:34:57.32 |
-39:31:16.5 |
HIP 71429 |
17.35 |
| 2026-05-30 12:00 |
14:34:43.71 |
-39:29:40.7 |
HIP 71349 |
19.53 |
| 2026-05-31 00:00 |
14:34:30.20 |
-39:28:04.5 |
HIP 71349 |
19.50 |
| 2026-05-31 12:00 |
14:34:16.79 |
-39:26:27.7 |
HIP 71349 |
19.93 |
| 2026-06-01 00:00 |
14:34:03.49 |
-39:24:50.4 |
HIP 71349 |
20.78 |
| 2026-06-01 12:00 |
14:33:50.30 |
-39:23:12.7 |
HIP 71349 |
22.00 |
| 2026-06-02 00:00 |
14:33:37.21 |
-39:21:34.5 |
HIP 71349 |
23.53 |