ASTROSAT CZTI

Data Quality Report

Orbit 59103

Creation date: 2026-08-30T23:47:29.626012
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_004T02_9000006600_59103cztM0_level2.fits modeM0/AS1A14_004T02_9000006600_59103cztM0_level2_quad_clean.evt
Size (bytes)2,118,144,960179,798,400
Size2.0 GB 171.5 MB
Events in quadrant A9,459,4481,584,202
Events in quadrant B11,864,4241,563,902
Events in quadrant C15,037,0241,117,810
Events in quadrant D40,742,74015,996

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0398332
B0465962
C0562812
D01323824

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03440
B03440
C03440
D03440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A168284072.418588%
B1682912887.653455%
C16829408224.255749%
D168281668699.156168%

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 18573 16831 213 213 1.15% 1.27%
B 18574 16832 1071 1071 5.77% 6.36%
C 18574 16831 1322 1322 7.12% 7.85%
D 18572 16828 13602 13602 73.24% 80.83%

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 3 14 926420 2047.59 1836 1792 451.6
A 7 206 480111 1059.24 1836 1792 451.6
A 0 24 360441 794.23 1836 1792 451.6
B 5 236 2930033 7756.83 1789 1721 377.5
B 0 171 445522 1175.59 1789 1721 377.5
B 10 128 262663 691.21 1789 1721 377.5
C 15 198 6358776 14868.82 1543 1530 427.6
C 3 233 1057552 2469.91 1543 1530 427.6
C 12 252 455233 1061.16 1543 1530 427.6
D 12 1 38972987 621681.46 210 200 62.7
D 11 129 372774 5943.18 210 200 62.7
D 2 249 156473 2492.82 210 200 62.7

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

TCT plots

Parameter TCT0 TCT_healed
Tct