Observation information
- date-obs: 2026-09-02
- time-obs: 23:25:25.229500000
- date-end: 2026-09-03
- time-end: 01:54:51.201200000
- obs_id: T05_264T01_9000006602
- exposure: 478.784379482
- sourceid: 4U 1907+09
- observer: rsharmaphys
- ra_pnt: 287.4085
- dec_pnt: 9.829809
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T05_264T01_9000006602_59154cztM0_level2.fits
| modeM0/AS1T05_264T01_9000006602_59154cztM0_level2_quad_clean.evt
|
| Size (bytes) | 772,617,600 | 84,309,120 |
| Size | 736.8 MB
| 80.4 MB
|
| Events in quadrant A | 3,234,900 | 666,894 |
| Events in quadrant B | 3,541,316 | 723,085 |
| Events in quadrant C | 4,181,169 | 646,241 |
| Events in quadrant D | 17,111,766 | 41,201 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14536 | 2 |
| B | 0 | 15335 | 2 |
| C | 0 | 17134 | 2 |
| D | 0 | 55538 | 5 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 21 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6821 | 80 | 1.172849% |
| B | 6822 | 198 | 2.902375% |
| C | 6822 | 299 | 4.382879% |
| D | 6821 | 6427 | 94.223721% |
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 | 9030 | 6887 | 6 | 6 | 0.07% | 0.09% |  |
| B | 9031 | 6887 | 49 | 49 | 0.54% | 0.71% |  |
| C | 9031 | 6888 | 208 | 208 | 2.30% | 3.02% |  |
| D | 9029 | 6849 | 6284 | 6284 | 69.60% | 91.75% |  |
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 | 10 | 251 | 111940 | 581.83 | 776 | 755 | 191.1 |
| A | 3 | 254 | 51292 | 264.46 | 776 | 755 | 191.1 |
| A | 3 | 14 | 25434 | 129.14 | 776 | 755 | 191.1 |
| B | 4 | 236 | 265750 | 1596.53 | 772 | 744 | 166.0 |
| B | 5 | 185 | 138976 | 832.78 | 772 | 744 | 166.0 |
| B | 5 | 236 | 32398 | 190.7 | 772 | 744 | 166.0 |
| C | 5 | 250 | 976030 | 4722.08 | 753 | 747 | 206.5 |
| C | 14 | 254 | 82487 | 395.77 | 753 | 747 | 206.5 |
| C | 5 | 233 | 70706 | 338.72 | 753 | 747 | 206.5 |
| D | 12 | 1 | 13855213 | 238674.74 | 199 | 190 | 58.0 |
| D | 12 | 110 | 1614170 | 27803.36 | 199 | 190 | 58.0 |
| D | 2 | 31 | 696432 | 11993.87 | 199 | 190 | 58.0 |
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 |  |
TCT plots
| Parameter |
TCT0 |
TCT_healed |
| Tct |  |  |