ASTROSAT CZTI

Data Quality Report

Orbit 09358

Creation date: 2024-06-27T15:44:54.032786
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G07_022T01_9000001322_09358cztM0_level2.evt modeM0/AS1G07_022T01_9000001322_09358cztM0_level2_quad_clean.evt
Size (bytes)995,904,000168,099,840
Size949.8 MB 160.3 MB
Events in quadrant A8,955,4011,056,406
Events in quadrant B6,151,5001,073,937
Events in quadrant C5,713,5331,063,468
Events in quadrant D8,482,6881,019,792

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0352339
B0266803
C0261165
D0339017

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02560
B02560
C02560
D02560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A127022712.133522%
B127041461.149244%
C12703910.716366%
D127027315.754999%

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 14069 12706 101 101 0.72% 0.79%
B 14069 12706 5 5 0.04% 0.04%
C 14069 12706 0 0 0.00% 0.00%
D 14069 12706 530 530 3.77% 4.17%

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 2722807 9234.05 1459 1424 294.7
A 13 251 171882 578.39 1459 1424 294.7
A 0 8 154737 520.21 1459 1424 294.7
B 0 219 112678 397.44 1469 1428 279.9
B 0 214 84643 297.29 1469 1428 279.9
B 4 80 57054 198.72 1469 1428 279.9
C 9 68 149832 449.36 1422 1425 330.3
C 13 61 10801 28.39 1422 1425 330.3
C 8 222 8744 22.16 1422 1425 330.3
D 12 227 2013792 5628.56 1392 1354 357.5
D 1 52 402002 1120.57 1392 1354 357.5
D 13 104 157972 438.04 1392 1354 357.5

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