ASTROSAT CZTI

Data Quality Report

Orbit 23429

Creation date: 2024-06-27T18:54:10.624446
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/AS1A07_138T01_9000003466_23429cztM0_level2.evt modeM0/AS1A07_138T01_9000003466_23429cztM0_level2_quad_clean.evt
Size (bytes)394,421,76078,606,720
Size376.1 MB 75.0 MB
Events in quadrant A2,748,824501,297
Events in quadrant B3,001,587507,029
Events in quadrant C2,875,282480,887
Events in quadrant D2,914,382475,666

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01264
B01268
C01264
D01262

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012870750
B013633843
C013072807
D013650845

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0101

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5952230.386425%
B5948520.874243%
C5936510.859164%
D5943300.504796%

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 7263 6117 0 0 0.00% 0.00%
B 7263 6102 14 14 0.19% 0.23%
C 7183 6111 2 2 0.03% 0.03%
D 7126 6102 25 25 0.35% 0.41%

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 13 254 9336 60.15 711 694 143.7
A 15 174 7105 44.62 711 694 143.7
A 3 137 6283 38.9 711 694 143.7
B 0 190 113286 824.23 708 689 136.6
B 0 189 56951 411.85 708 689 136.6
B 5 172 50293 363.11 708 689 136.6
C 14 238 108477 678.94 675 679 158.8
C 10 9 102894 643.78 675 679 158.8
C 0 207 19341 117.54 675 679 158.8
D 1 52 285133 1698.28 686 667 167.5
D 2 234 23441 135.96 686 667 167.5
D 13 249 11813 66.54 686 667 167.5

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