Observation information
- date-obs: 2026-04-15
- time-obs: 13:19:53.155300000
- date-end: 2026-04-15
- time-end: 18:49:23.107000000
- obs_id: A14_083T10_9000006566
- exposure: 16964.4715023
- sourceid: NGC1249
- observer: Rakshit
- ra_pnt: 47.50507
- dec_pnt: -53.33584
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_083T10_9000006566_57068cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57068cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,195,701,120 | 255,723,840 |
| Size | 1.1 GB
| 243.9 MB
|
| Events in quadrant A | 8,092,020 | 1,687,075 |
| Events in quadrant B | 9,355,340 | 1,785,398 |
| Events in quadrant C | 10,450,651 | 1,604,625 |
| Events in quadrant D | 14,947,330 | 1,405,106 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 38034 | 3 |
| B | 0 | 41010 | 3 |
| C | 0 | 43427 | 3 |
| D | 0 | 57123 | 5 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 372 | 0 |
| B | 0 | 372 | 0 |
| C | 0 | 372 | 0 |
| D | 0 | 372 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18285 | 217 | 1.186765% |
| B | 18285 | 548 | 2.996992% |
| C | 18285 | 272 | 1.487558% |
| D | 18285 | 1352 | 7.394039% |
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 | 19770 | 18285 | 56 | 56 | 0.28% | 0.31% |  |
| B | 19770 | 18285 | 219 | 219 | 1.11% | 1.20% |  |
| C | 19770 | 18288 | 189 | 189 | 0.96% | 1.03% |  |
| D | 19770 | 18287 | 1340 | 1340 | 6.78% | 7.33% |  |
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 | 7 | 64 | 119015 | 242.36 | 1963 | 1911 | 483.2 |
| A | 10 | 251 | 98995 | 200.93 | 1963 | 1911 | 483.2 |
| A | 13 | 248 | 85576 | 173.15 | 1963 | 1911 | 483.2 |
| B | 10 | 16 | 657606 | 1596.4 | 1908 | 1835 | 410.8 |
| B | 4 | 171 | 285500 | 690.55 | 1908 | 1835 | 410.8 |
| B | 0 | 213 | 186650 | 449.91 | 1908 | 1835 | 410.8 |
| C | 1 | 16 | 659471 | 1291.57 | 1892 | 1877 | 509.1 |
| C | 6 | 223 | 298177 | 581.96 | 1892 | 1877 | 509.1 |
| C | 14 | 67 | 289331 | 564.58 | 1892 | 1877 | 509.1 |
| D | 15 | 142 | 3600271 | 6956.39 | 1840 | 1754 | 517.3 |
| D | 12 | 33 | 2805813 | 5420.61 | 1840 | 1754 | 517.3 |
| D | 2 | 249 | 358463 | 689.56 | 1840 | 1754 | 517.3 |
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 |  |