ASTROSAT CZTI

Data Quality Report

Orbit 29210

Creation date: 2024-06-27T20:01:31.610088
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/AS1A10_053T43_9000004198_29210cztM0_level2.evt modeM0/AS1A10_053T43_9000004198_29210cztM0_level2_quad_clean.evt
Size (bytes)337,320,00031,680,000
Size321.7 MB 30.2 MB
Events in quadrant A1,803,208192,131
Events in quadrant B2,100,880190,285
Events in quadrant C2,545,450177,629
Events in quadrant D3,552,334174,910

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074041
B084901
C098961
D0127941

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3140361.146497%
B3140742.356688%
C31401414.490446%
D314042213.439490%

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 3140 3140 0 0 0.00% 0.00%
B 3140 3140 17 17 0.54% 0.54%
C 3140 3140 3 3 0.10% 0.10%
D 3140 3140 344 344 10.96% 10.96%

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 0 13 11253 117.04 464 457 92.2
A 13 254 6496 65.47 464 457 92.2
A 0 226 3995 38.35 464 457 92.2
B 0 183 133815 1580.97 452 444 84.4
B 10 245 98105 1157.67 452 444 84.4
B 0 229 65612 772.5 452 444 84.4
C 3 233 775049 7787.84 433 436 99.5
C 14 238 74008 739.68 433 436 99.5
C 2 114 7418 70.2 433 436 99.5
D 1 52 1405165 13828.25 429 420 101.6
D 8 195 453756 4462.62 429 420 101.6
D 2 250 34582 336.29 429 420 101.6

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