ASTROSAT CZTI

Data Quality Report

Orbit 54633

Creation date: 2025-11-03T04:45:04.491251
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/AS1A14_066T07_9000006522_54633cztM0_level2.fits modeM0/AS1A14_066T07_9000006522_54633cztM0_level2_quad_clean.evt
Size (bytes)443,563,20095,829,120
Size423.0 MB 91.4 MB
Events in quadrant A3,528,401641,895
Events in quadrant B3,430,118689,701
Events in quadrant C3,669,529593,952
Events in quadrant D5,295,756531,835

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150342
B0145672
C0154132
D0201522

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63701933.029827%
B63701872.935636%
C63702694.222920%
D636968010.676715%

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 7520 6371 106 106 1.41% 1.66%
B 7520 6371 85 85 1.13% 1.33%
C 7520 6371 147 147 1.95% 2.31%
D 7519 6370 614 614 8.17% 9.64%

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 13 248 395355 2214.38 720 704 178.2
A 11 3 179250 1001.82 720 704 178.2
A 3 62 56260 311.72 720 704 178.2
B 1 207 343455 2228.86 716 691 153.8
B 5 172 205975 1334.88 716 691 153.8
B 10 247 20818 130.88 716 691 153.8
C 4 5 424980 2267.89 683 681 187.1
C 13 3 224237 1194.91 683 681 187.1
C 6 223 108414 575.84 683 681 187.1
D 2 16 1056780 5619.23 662 633 188.0
D 3 12 1021237 5430.13 662 633 188.0
D 2 172 283700 1506.06 662 633 188.0

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