Observation information
- date-obs: 2025-06-14
- time-obs: 11:29:10.808200000
- date-end: 2025-06-14
- time-end: 16:57:39.764000000
- obs_id: C09_011T06_9000006478
- exposure: 9566.32821757
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C09_011T06_9000006478_52535cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52535cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,162,940,480 | 221,875,200 |
| Size | 2.0 GB
| 211.6 MB
|
| Events in quadrant A | 10,952,867 | 1,647,829 |
| Events in quadrant B | 11,838,974 | 1,757,956 |
| Events in quadrant C | 20,630,929 | 1,269,684 |
| Events in quadrant D | 35,220,620 | 769,778 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 45711 | 3 |
| B | 0 | 47569 | 3 |
| C | 0 | 74311 | 3 |
| D | 0 | 117414 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 374 | 0 |
| B | 0 | 374 | 0 |
| C | 0 | 374 | 0 |
| D | 0 | 374 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18444 | 877 | 4.754934% |
| B | 18444 | 893 | 4.841683% |
| C | 18445 | 3945 | 21.387910% |
| D | 18445 | 9733 | 52.767688% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 19709 | 18448 | 586 | 586 | 2.97% | 3.18% |  |
| B | 19709 | 18448 | 456 | 456 | 2.31% | 2.47% |  |
| C | 19710 | 18449 | 3139 | 3139 | 15.93% | 17.01% |  |
| D | 19710 | 18448 | 8866 | 8866 | 44.98% | 48.06% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 3 | 46 | 1456496 | 3051.84 | 1929 | 1880 | 476.6 |
| A | 5 | 243 | 435654 | 910.07 | 1929 | 1880 | 476.6 |
| A | 3 | 45 | 223428 | 464.82 | 1929 | 1880 | 476.6 |
| B | 12 | 32 | 1642548 | 4106.88 | 1903 | 1833 | 399.5 |
| B | 10 | 44 | 647392 | 1615.9 | 1903 | 1833 | 399.5 |
| B | 4 | 21 | 558057 | 1392.28 | 1903 | 1833 | 399.5 |
| C | 15 | 224 | 4276455 | 9134.39 | 1702 | 1690 | 468.0 |
| C | 12 | 254 | 4187505 | 8944.32 | 1702 | 1690 | 468.0 |
| C | 15 | 248 | 1305814 | 2786.68 | 1702 | 1690 | 468.0 |
| D | 6 | 42 | 15984353 | 38583.44 | 1437 | 1368 | 414.2 |
| D | 12 | 17 | 2206472 | 5323.19 | 1437 | 1368 | 414.2 |
| D | 8 | 176 | 2090852 | 5044.08 | 1437 | 1368 | 414.2 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |