ASTROSAT CZTI

Data Quality Report

Orbit 58788

Creation date: 2026-08-09T17:06:13.133618
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_106T01_9000006596_58788cztM0_level2.fits modeM0/AS1A14_106T01_9000006596_58788cztM0_level2_quad_clean.evt
Size (bytes)321,413,76037,134,720
Size306.5 MB 35.4 MB
Events in quadrant A1,619,565299,826
Events in quadrant B1,785,790310,127
Events in quadrant C1,778,498274,922
Events in quadrant D6,490,66535,478

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06898337
B07675483
C07807496
D0233492240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0642
B0631
C0642
D0621

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C090
D0111

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2902341.171606%
B2872873.029248%
C2872802.785515%
D2730241488.424908%

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 6726 2974 26 26 0.39% 0.87%
B 6730 2963 58 58 0.86% 1.96%
C 6730 2972 61 61 0.91% 2.05%
D 6720 2784 2309 2309 34.36% 82.94%

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 206644 2508.45 329 322 82.3
A 3 254 39684 478.56 329 322 82.3
A 13 248 26253 315.27 329 322 82.3
B 8 234 142602 2064.7 316 306 68.9
B 6 255 76793 1109.82 316 306 68.9
B 4 201 64155 926.44 316 306 68.9
C 13 3 388021 4496.3 309 305 86.2
C 12 249 49879 574.9 309 305 86.2
C 5 254 40059 461.02 309 305 86.2
D 11 129 3343084 69376.37 163 156 48.2
D 12 110 2412746 50068.9 163 156 48.2
D 15 94 32926 680.08 163 156 48.2

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