Observation information
- date-obs: 2026-09-01
- time-obs: 18:15:22.452800000
- date-end: 2026-09-01
- time-end: 20:25:58.424200000
- obs_id: T05_264T01_9000006602
- exposure: 2051.31447458
- 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_59136cztM0_level2.fits
| modeM0/AS1T05_264T01_9000006602_59136cztM0_level2_quad_clean.evt
|
| Size (bytes) | 695,808,000 | 86,889,600 |
| Size | 663.6 MB
| 82.9 MB
|
| Events in quadrant A | 3,988,751 | 635,841 |
| Events in quadrant B | 3,935,728 | 703,359 |
| Events in quadrant C | 3,220,996 | 641,374 |
| Events in quadrant D | 14,116,331 | 205,458 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16315 | 41 |
| B | 0 | 15947 | 7 |
| C | 0 | 14050 | 9 |
| D | 0 | 46330 | 121 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6372 | 199 | 3.123038% |
| B | 6377 | 201 | 3.151952% |
| C | 6375 | 62 | 0.972549% |
| D | 6363 | 4498 | 70.689926% |
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 | 7543 | 6376 | 111 | 111 | 1.47% | 1.74% |  |
| B | 7543 | 6379 | 132 | 132 | 1.75% | 2.07% |  |
| C | 7543 | 6379 | 35 | 35 | 0.46% | 0.55% |  |
| D | 7542 | 6365 | 4380 | 4380 | 58.07% | 68.81% |  |
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 | 14 | 789022 | 4473.58 | 719 | 704 | 176.2 |
| A | 13 | 248 | 229340 | 1297.47 | 719 | 704 | 176.2 |
| A | 10 | 251 | 132856 | 749.94 | 719 | 704 | 176.2 |
| B | 4 | 236 | 369336 | 2350.37 | 722 | 694 | 156.8 |
| B | 5 | 236 | 242364 | 1540.83 | 722 | 694 | 156.8 |
| B | 4 | 201 | 150098 | 952.56 | 722 | 694 | 156.8 |
| C | 5 | 250 | 179929 | 899.25 | 716 | 707 | 199.3 |
| C | 12 | 252 | 139774 | 697.77 | 716 | 707 | 199.3 |
| C | 7 | 255 | 30289 | 148.43 | 716 | 707 | 199.3 |
| D | 12 | 1 | 11651640 | 98733.0 | 402 | 383 | 118.0 |
| D | 12 | 110 | 292977 | 2479.45 | 402 | 383 | 118.0 |
| D | 2 | 62 | 219146 | 1853.8 | 402 | 383 | 118.0 |
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 |  |  |