ASTROSAT CZTI

Data Quality Report

Orbit 32758

Creation date: 2024-06-27T20:41:40.848689
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_057T04_9000004728_32758cztM0_level2.evt modeM0/AS1A10_057T04_9000004728_32758cztM0_level2_quad_clean.evt
Size (bytes)436,763,52063,178,560
Size416.5 MB 60.3 MB
Events in quadrant A2,368,463401,013
Events in quadrant B2,748,807403,842
Events in quadrant C2,381,449397,727
Events in quadrant D5,396,374366,648

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099082
B0111051
C0101281
D0195171

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A490530.061162%
B4905621.264016%
C4905220.448522%
D49053266.646279%

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 7057 4906 0 0 0.00% 0.00%
B 7057 4906 45 45 0.64% 0.92%
C 7057 4906 14 14 0.20% 0.29%
D 7057 4906 262 262 3.71% 5.34%

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 13 254 8551 65.68 608 598 121.1
A 0 226 5155 37.64 608 598 121.1
A 3 137 4907 35.59 608 598 121.1
B 12 1 177585 1561.67 603 591 113.3
B 3 32 63696 556.79 603 591 113.3
B 5 172 32232 279.18 603 591 113.3
C 0 10 66248 495.94 579 585 132.4
C 4 254 16009 116.5 579 585 132.4
C 8 35 10887 77.81 579 585 132.4
D 8 195 2296458 16176.45 563 551 141.9
D 7 80 343476 2416.17 563 551 141.9
D 2 250 236631 1663.37 563 551 141.9

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