ASTROSAT CZTI

Data Quality Report

Orbit 43964

Creation date: 2024-06-27T22:57:44.145689
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/AS1A13_065T06_9000005924_43964cztM0_level2.fits modeM0/AS1A13_065T06_9000005924_43964cztM0_level2_quad_clean.evt
Size (bytes)495,688,320107,665,920
Size472.7 MB 102.7 MB
Events in quadrant A7,212,675679,591
Events in quadrant B3,145,167756,260
Events in quadrant C3,116,298720,198
Events in quadrant D4,364,974645,869

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261494
B0139131
C0139181
D0174381

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A656681312.381968%
B6567620.944115%
C6567300.456830%
D65672293.487133%

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 7621 6566 614 614 8.06% 9.35%
B 7622 6566 17 17 0.22% 0.26%
C 7622 6566 21 21 0.28% 0.32%
D 7622 6566 199 199 2.61% 3.03%

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 1711950 11432.54 719 707 149.7
A 15 223 1437018 9595.77 719 707 149.7
A 10 83 1128655 7535.64 719 707 149.7
B 0 183 106016 709.67 749 726 148.4
B 12 111 18347 118.77 749 726 148.4
B 11 111 16915 109.12 749 726 148.4
C 14 254 198756 1142.11 732 738 173.4
C 3 233 34511 194.79 732 738 173.4
C 15 157 20244 112.51 732 738 173.4
D 1 52 584213 3139.97 719 697 185.8
D 13 171 327894 1760.68 719 697 185.8
D 13 249 171546 919.36 719 697 185.8

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