Observation information
- date-obs: 2017-09-27
- time-obs: 08:11:02.527500000
- date-end: 2017-09-27
- time-end: 11:54:33.530500000
- obs_id: G07_003T02_9000001564
- exposure: 7303.67143223
- sourceid: NGC 7252
- observer: koshy
- ra_pnt: 335.1862
- dec_pnt: -24.67833
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G07_003T02_9000001564_10810cztM0_level2.evt
| modeM0/AS1G07_003T02_9000001564_10810cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,075,599,360 | 143,899,200 |
| Size | 1.0 GB
| 137.2 MB
|
| Events in quadrant A | 9,986,419 | 870,498 |
| Events in quadrant B | 8,201,327 | 919,471 |
| Events in quadrant C | 5,333,343 | 939,586 |
| Events in quadrant D | 8,300,754 | 855,447 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 226 | 0 |
| B | 0 | 226 | 0 |
| C | 0 | 226 | 0 |
| D | 0 | 226 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 23 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 37034 | 7 |
| B | 0 | 31633 | 2 |
| C | 0 | 23543 | 2 |
| D | 0 | 32058 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 11160 | 1417 | 12.697133% |
| B | 11161 | 911 | 8.162351% |
| C | 11161 | 140 | 1.254368% |
| D | 11161 | 834 | 7.472449% |
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 | 13411 | 11161 | 953 | 953 | 7.11% | 8.54% |  |
| B | 13411 | 11161 | 487 | 487 | 3.63% | 4.36% |  |
| C | 13411 | 11162 | 19 | 19 | 0.14% | 0.17% |  |
| D | 13411 | 11161 | 644 | 644 | 4.80% | 5.77% |  |
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 | 8 | 5 | 4938834 | 18888.43 | 1299 | 1274 | 261.4 |
| A | 15 | 174 | 19395 | 69.32 | 1299 | 1274 | 261.4 |
| A | 4 | 2 | 13762 | 47.77 | 1299 | 1274 | 261.4 |
| B | 4 | 239 | 2648600 | 10470.47 | 1336 | 1303 | 252.8 |
| B | 15 | 204 | 165899 | 651.0 | 1336 | 1303 | 252.8 |
| B | 0 | 214 | 87023 | 339.04 | 1336 | 1303 | 252.8 |
| C | 14 | 234 | 161063 | 525.55 | 1326 | 1332 | 303.9 |
| C | 13 | 61 | 9754 | 27.71 | 1326 | 1332 | 303.9 |
| C | 8 | 222 | 6189 | 15.98 | 1326 | 1332 | 303.9 |
| D | 1 | 52 | 1099252 | 3569.77 | 1289 | 1255 | 307.6 |
| D | 12 | 233 | 582476 | 1889.64 | 1289 | 1255 | 307.6 |
| D | 2 | 14 | 438511 | 1421.59 | 1289 | 1255 | 307.6 |
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 |  |