ASTROSAT CZTI

Data Quality Report

Orbit 59310

Creation date: 2026-09-13T20:09:08.814517
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_021T06_9000006606_59310cztM0_level2.fits modeM0/AS1A14_021T06_9000006606_59310cztM0_level2_quad_clean.evt
Size (bytes)601,856,64084,119,040
Size574.0 MB 80.2 MB
Events in quadrant A3,315,498624,167
Events in quadrant B4,112,953633,543
Events in quadrant C3,150,548575,733
Events in quadrant D11,220,395283,061

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141632
B0164981
C0138721
D0376131

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6165851.378751%
B61655518.937551%
C61651362.206002%
D6165330453.592863%

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 7235 6165 44 44 0.61% 0.71%
B 7235 6165 440 440 6.08% 7.14%
C 7235 6165 85 85 1.17% 1.38%
D 7234 6164 3162 3162 43.71% 51.30%

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 14 238 430406 2554.76 679 663 168.2
A 7 64 207051 1226.95 679 663 168.2
A 3 245 13395 75.69 679 663 168.2
B 4 236 1213820 8846.27 646 623 137.1
B 10 247 89608 648.85 646 623 137.1
B 10 128 53637 386.56 646 623 137.1
C 15 198 249890 1397.63 652 642 178.3
C 15 1 128245 715.52 652 642 178.3
C 4 5 77854 432.96 652 642 178.3
D 12 110 7115505 47304.73 526 501 150.4
D 12 2 958237 6367.59 526 501 150.4
D 11 129 859271 5709.61 526 501 150.4

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