ASTROSAT CZTI

Data Quality Report

Orbit 02962

Creation date: 2024-06-27T14:22:46.522992
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/AS1G05_238T04_9000000416_02962cztM0_level2.evt modeM0/AS1G05_238T04_9000000416_02962cztM0_level2_quad_clean.evt
Size (bytes)470,779,20043,257,600
Size449.0 MB 41.3 MB
Events in quadrant A2,617,938251,780
Events in quadrant B2,464,357251,517
Events in quadrant C3,487,540235,668
Events in quadrant D5,327,156198,225

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115413
B0110922
C0139712
D0195252

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5314591.110275%
B5314210.395183%
C53142033.820098%
D531496518.159578%

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 9622 5316 32 32 0.33% 0.60%
B 9622 5316 10 10 0.10% 0.19%
C 9622 5316 170 170 1.77% 3.20%
D 9622 5316 789 789 8.20% 14.84%

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 50 300600 2528.02 576 564 118.7
A 8 15 23459 192.91 576 564 118.7
A 0 31 21870 179.52 576 564 118.7
B 5 70 52054 450.01 586 572 114.4
B 15 85 32975 283.23 586 572 114.4
B 14 167 32746 281.23 586 572 114.4
C 0 219 653509 5041.99 549 550 129.5
C 1 192 482925 3724.78 549 550 129.5
C 6 80 154159 1186.13 549 550 129.5
D 12 1 2852103 23454.36 507 496 121.6
D 14 81 136116 1115.47 507 496 121.6
D 2 209 124216 1017.59 507 496 121.6

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