| Parameter |
Value |
| Designation |
C/2024 G6 (ATLAS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2026-02-20T14:36:45.305280Z |
| Orbit solution date (soln_date, UTC) |
2026-09-29T13:12:11Z |
| Obs used |
1604 |
| NEO |
- |
| M1 |
8.100 |
| K1 |
7.000 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2024-04-10T08:22:02.928000Z |
| Discovery magnitude (MPC) |
19.13 o |
| Discovery observatory (MPC) |
W68 · ATLAS Chile, Rio Hurtado |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2026-01-12.0000000 |
| e |
1.00177793 |
| q (au) |
6.429991 |
| a (au) |
-3616.570329 |
| i (deg) |
120.451413 |
| Ω (om, deg) |
250.950799 |
| ω (w, deg) |
23.425673 |
| M (ma, deg) |
-0.000179 |
Magnitude
Scatter + Global Linear
$$
M_a = (4.921 + 4.145\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
4.921 |
| n |
4.145 |
| gf |
0.895 |
| gb |
-0.962 |
| k |
1.000 |
| δ90 |
1.001 |
| 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
Finding Chart
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-25 00:00 |
15:09:58.17 |
+15:09:07.1 |
HIP 74042 |
31.85 |
| 2026-09-25 12:00 |
15:10:05.74 |
+15:08:55.4 |
HIP 74042 |
33.49 |
| 2026-09-26 00:00 |
15:10:13.40 |
+15:08:44.0 |
HIP 74042 |
35.17 |
| 2026-09-26 12:00 |
15:10:21.15 |
+15:08:33.1 |
HIP 74420 |
34.83 |
| 2026-09-27 00:00 |
15:10:28.99 |
+15:08:22.6 |
HIP 74420 |
33.18 |
| 2026-09-27 12:00 |
15:10:36.92 |
+15:08:12.5 |
HIP 74420 |
31.54 |
| 2026-09-28 00:00 |
15:10:44.94 |
+15:08:02.9 |
HIP 74420 |
29.91 |
| 2026-09-28 12:00 |
15:10:53.05 |
+15:07:53.7 |
HIP 74420 |
28.30 |
| 2026-09-29 00:00 |
15:11:01.24 |
+15:07:45.0 |
HIP 74420 |
26.71 |
| 2026-09-29 12:00 |
15:11:09.52 |
+15:07:36.7 |
HIP 74420 |
25.15 |
| 2026-09-30 00:00 |
15:11:17.88 |
+15:07:28.9 |
HIP 74420 |
23.64 |
| 2026-09-30 12:00 |
15:11:26.33 |
+15:07:21.6 |
HIP 74420 |
22.20 |
| 2026-10-01 00:00 |
15:11:34.87 |
+15:07:14.7 |
HIP 74420 |
20.83 |
| 2026-10-01 12:00 |
15:11:43.48 |
+15:07:08.4 |
HIP 74420 |
19.57 |
| 2026-10-02 00:00 |
15:11:52.18 |
+15:07:02.6 |
HIP 74420 |
18.43 |
| 2026-10-02 12:00 |
15:12:00.96 |
+15:06:57.2 |
HIP 74420 |
17.46 |
| 2026-10-03 00:00 |
15:12:09.82 |
+15:06:52.4 |
HIP 74420 |
16.69 |
| 2026-10-03 12:00 |
15:12:18.77 |
+15:06:48.1 |
HIP 74420 |
16.16 |
| 2026-10-04 00:00 |
15:12:27.79 |
+15:06:44.4 |
HIP 74420 |
15.89 |
| 2026-10-04 12:00 |
15:12:36.89 |
+15:06:41.2 |
HIP 74420 |
15.91 |
| 2026-10-05 00:00 |
15:12:46.07 |
+15:06:38.5 |
HIP 74420 |
16.22 |
| 2026-10-05 12:00 |
15:12:55.33 |
+15:06:36.4 |
HIP 74420 |
16.82 |
| 2026-10-06 00:00 |
15:13:04.66 |
+15:06:34.9 |
HIP 74420 |
17.68 |
| 2026-10-06 12:00 |
15:13:14.07 |
+15:06:33.9 |
HIP 74459 |
18.73 |
| 2026-10-07 00:00 |
15:13:23.55 |
+15:06:33.6 |
HIP 74459 |
19.33 |
| 2026-10-07 12:00 |
15:13:33.11 |
+15:06:33.8 |
HIP 74459 |
20.19 |
| 2026-10-08 00:00 |
15:13:42.74 |
+15:06:34.6 |
HIP 74459 |
21.28 |
| 2026-10-08 12:00 |
15:13:52.45 |
+15:06:36.0 |
HIP 74459 |
22.58 |
| 2026-10-09 00:00 |
15:14:02.22 |
+15:06:38.1 |
HIP 74459 |
24.06 |
| 2026-10-09 12:00 |
15:14:12.07 |
+15:06:40.8 |
HIP 74459 |
25.69 |
| 2026-10-10 00:00 |
15:14:21.99 |
+15:06:44.1 |
HIP 74459 |
27.45 |
| 2026-10-10 12:00 |
15:14:31.97 |
+15:06:48.0 |
HIP 74459 |
29.31 |
| 2026-10-11 00:00 |
15:14:42.03 |
+15:06:52.6 |
HIP 74459 |
31.28 |
| 2026-10-11 12:00 |
15:14:52.15 |
+15:06:57.9 |
HIP 74713 |
31.45 |
| 2026-10-12 00:00 |
15:15:02.34 |
+15:07:03.9 |
HIP 74713 |
30.00 |
| 2026-10-12 12:00 |
15:15:12.59 |
+15:07:10.5 |
HIP 74713 |
28.67 |
| 2026-10-13 00:00 |
15:15:22.91 |
+15:07:17.8 |
HIP 74713 |
27.48 |
| 2026-10-13 12:00 |
15:15:33.30 |
+15:07:25.8 |
HIP 74713 |
26.45 |
| 2026-10-14 00:00 |
15:15:43.74 |
+15:07:34.4 |
HIP 74713 |
25.61 |
| 2026-10-14 12:00 |
15:15:54.25 |
+15:07:43.8 |
HIP 74713 |
24.99 |
| 2026-10-15 00:00 |
15:16:04.82 |
+15:07:54.0 |
HIP 74713 |
24.61 |
| 2026-10-15 12:00 |
15:16:15.45 |
+15:08:04.8 |
HIP 74713 |
24.47 |
| 2026-10-16 00:00 |
15:16:26.13 |
+15:08:16.3 |
HIP 74713 |
24.59 |