ASTROSAT CZTI

Data Quality Report

Orbit 42433

Creation date: 2024-06-27T22:40:07.890753
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/AS1C07_001T10_9000005806_42433cztM0_level2.fits modeM0/AS1C07_001T10_9000005806_42433cztM0_level2_quad_clean.evt
Size (bytes)366,168,96084,574,080
Size349.2 MB 80.7 MB
Events in quadrant A2,952,923589,430
Events in quadrant B4,155,584520,554
Events in quadrant C2,501,678565,175
Events in quadrant D3,542,795524,878

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120542
B0159972
C0107052
D0141232

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5153240.465748%
B515366512.905104%
C5153150.291093%
D51531753.396080%

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 7186 5154 13 13 0.18% 0.25%
B 7185 5153 494 494 6.88% 9.59%
C 7186 5154 7 7 0.10% 0.14%
D 7186 5154 154 154 2.14% 2.99%

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 83 622145 5479.76 552 542 113.4
A 14 223 169662 1490.88 552 542 113.4
A 13 254 10317 86.17 552 542 113.4
B 0 186 1840493 18677.66 522 508 98.5
B 5 255 136173 1377.13 522 508 98.5
B 5 172 42863 429.94 522 508 98.5
C 15 214 219197 1734.42 542 544 126.1
C 7 220 62981 495.27 542 544 126.1
C 12 249 49076 384.97 542 544 126.1
D 1 52 848997 6350.87 541 525 133.6
D 12 33 258699 1932.45 541 525 133.6
D 10 199 68806 511.09 541 525 133.6

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