ASTROSAT CZTI

Data Quality Report

Orbit 19386

Creation date: 2024-06-27T18:02:14.901154
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/AS1A05_104T05_9000002870_19386cztM0_level2.evt modeM0/AS1A05_104T05_9000002870_19386cztM0_level2_quad_clean.evt
Size (bytes)294,724,80035,637,120
Size281.1 MB 34.0 MB
Events in quadrant A1,190,828245,722
Events in quadrant B1,213,669249,554
Events in quadrant C1,230,424240,884
Events in quadrant D5,125,717168,837

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051041
B051261
C051401
D0168741

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2405160.665281%
B2406361.496259%
C2406662.743142%
D2406176373.275145%

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 2850 2406 0 0 0.00% 0.00%
B 2851 2407 0 0 0.00% 0.00%
C 2851 2407 0 0 0.00% 0.00%
D 2851 2406 1650 1650 57.87% 68.58%

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 11 29 2731 37.58 308 300 64.7
A 13 254 2606 35.65 308 300 64.7
A 3 137 2559 34.92 308 300 64.7
B 12 111 7565 117.38 308 298 61.9
B 11 111 6746 104.15 308 298 61.9
B 14 111 5904 90.55 308 298 61.9
C 14 238 46819 629.42 302 303 73.9
C 3 233 2266 26.56 302 303 73.9
C 13 61 2064 23.83 302 303 73.9
D 10 66 3543039 67594.03 205 199 52.4
D 7 238 624010 11901.72 205 199 52.4
D 1 52 179257 3416.26 205 199 52.4

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