| Parameter |
Value |
| Designation |
C/1914 J1 (Zlatinsky) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1914-05-08T21:04:17.437440Z |
| Orbit solution date (soln_date, UTC) |
2024-04-15T15:43:28Z |
| Obs used |
27 |
| NEO |
- |
| M1 |
9.000 |
| K1 |
8.000 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
1914-05-28.0000000 |
| e |
1.00013213 |
| q (au) |
0.543189 |
| a (au) |
-4111.176591 |
| i (deg) |
112.979652 |
| Ω (om, deg) |
33.853999 |
| ω (w, deg) |
116.416144 |
| M (ma, deg) |
0.000071 |
Magnitude
Scatter + Global Linear
$$
M_a = (8.774 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
8.774 |
| n |
2.000 |
| gf |
0.800 |
| gb |
-1.000 |
| k |
0.800 |
| δ90 |
1.000 |
| 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) |
| 2026-09-20 00:00 |
05:43:28.75 |
-37:13:37.9 |
HIP 26874 |
19.39 |
| 2026-09-20 12:00 |
05:43:28.71 |
-37:13:49.7 |
HIP 26874 |
19.25 |
| 2026-09-21 00:00 |
05:43:28.66 |
-37:14:01.4 |
HIP 26874 |
19.10 |
| 2026-09-21 12:00 |
05:43:28.60 |
-37:14:13.2 |
HIP 26874 |
18.95 |
| 2026-09-22 00:00 |
05:43:28.53 |
-37:14:25.0 |
HIP 26874 |
18.80 |
| 2026-09-22 12:00 |
05:43:28.45 |
-37:14:36.8 |
HIP 26874 |
18.66 |
| 2026-09-23 00:00 |
05:43:28.36 |
-37:14:48.6 |
HIP 26874 |
18.51 |
| 2026-09-23 12:00 |
05:43:28.26 |
-37:15:00.3 |
HIP 26874 |
18.36 |
| 2026-09-24 00:00 |
05:43:28.15 |
-37:15:12.1 |
HIP 26874 |
18.21 |
| 2026-09-24 12:00 |
05:43:28.03 |
-37:15:23.9 |
HIP 26874 |
18.06 |
| 2026-09-25 00:00 |
05:43:27.90 |
-37:15:35.6 |
HIP 26874 |
17.91 |
| 2026-09-25 12:00 |
05:43:27.76 |
-37:15:47.4 |
HIP 26874 |
17.76 |
| 2026-09-26 00:00 |
05:43:27.61 |
-37:15:59.1 |
HIP 26874 |
17.61 |
| 2026-09-26 12:00 |
05:43:27.46 |
-37:16:10.8 |
HIP 26874 |
17.46 |
| 2026-09-27 00:00 |
05:43:27.29 |
-37:16:22.6 |
HIP 26874 |
17.31 |
| 2026-09-27 12:00 |
05:43:27.11 |
-37:16:34.3 |
HIP 26874 |
17.16 |
| 2026-09-28 00:00 |
05:43:26.92 |
-37:16:46.0 |
HIP 26874 |
17.00 |
| 2026-09-28 12:00 |
05:43:26.73 |
-37:16:57.6 |
HIP 26874 |
16.85 |
| 2026-09-29 00:00 |
05:43:26.52 |
-37:17:09.3 |
HIP 26874 |
16.70 |
| 2026-09-29 12:00 |
05:43:26.30 |
-37:17:21.0 |
HIP 26874 |
16.54 |
| 2026-09-30 00:00 |
05:43:26.08 |
-37:17:32.6 |
HIP 26874 |
16.39 |
| 2026-09-30 12:00 |
05:43:25.84 |
-37:17:44.2 |
HIP 26874 |
16.24 |
| 2026-10-01 00:00 |
05:43:25.60 |
-37:17:55.8 |
HIP 26874 |
16.08 |
| 2026-10-01 12:00 |
05:43:25.34 |
-37:18:07.4 |
HIP 26874 |
15.92 |
| 2026-10-02 00:00 |
05:43:25.08 |
-37:18:19.0 |
HIP 26874 |
15.77 |
| 2026-10-02 12:00 |
05:43:24.81 |
-37:18:30.6 |
HIP 26874 |
15.61 |
| 2026-10-03 00:00 |
05:43:24.52 |
-37:18:42.1 |
HIP 26874 |
15.46 |
| 2026-10-03 12:00 |
05:43:24.23 |
-37:18:53.6 |
HIP 26874 |
15.30 |
| 2026-10-04 00:00 |
05:43:23.93 |
-37:19:05.1 |
HIP 26874 |
15.14 |
| 2026-10-04 12:00 |
05:43:23.61 |
-37:19:16.6 |
HIP 26874 |
14.99 |
| 2026-10-05 00:00 |
05:43:23.29 |
-37:19:28.0 |
HIP 26874 |
14.83 |
| 2026-10-05 12:00 |
05:43:22.96 |
-37:19:39.5 |
HIP 26874 |
14.67 |
| 2026-10-06 00:00 |
05:43:22.62 |
-37:19:50.9 |
HIP 26874 |
14.51 |
| 2026-10-06 12:00 |
05:43:22.27 |
-37:20:02.2 |
HIP 26874 |
14.35 |
| 2026-10-07 00:00 |
05:43:21.91 |
-37:20:13.6 |
HIP 26874 |
14.19 |
| 2026-10-07 12:00 |
05:43:21.54 |
-37:20:24.9 |
HIP 26874 |
14.03 |
| 2026-10-08 00:00 |
05:43:21.16 |
-37:20:36.2 |
HIP 26874 |
13.88 |
| 2026-10-08 12:00 |
05:43:20.77 |
-37:20:47.4 |
HIP 26874 |
13.72 |
| 2026-10-09 00:00 |
05:43:20.37 |
-37:20:58.7 |
HIP 26874 |
13.56 |
| 2026-10-09 12:00 |
05:43:19.97 |
-37:21:09.9 |
HIP 26874 |
13.40 |
| 2026-10-10 00:00 |
05:43:19.55 |
-37:21:21.0 |
HIP 26874 |
13.24 |
| 2026-10-10 12:00 |
05:43:19.12 |
-37:21:32.2 |
HIP 26874 |
13.07 |
| 2026-10-11 00:00 |
05:43:18.69 |
-37:21:43.3 |
HIP 26874 |
12.91 |