ASTROSAT CZTI

Data Quality Report

Orbit 17585

Creation date: 2024-06-27T17:38:17.078248
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_056T01_9000002604_17585cztM0_level2.evt modeM0/AS1A05_056T01_9000002604_17585cztM0_level2_quad_clean.evt
Size (bytes)472,887,36070,424,640
Size451.0 MB 67.2 MB
Events in quadrant A3,829,629427,836
Events in quadrant B3,245,443438,038
Events in quadrant C3,520,972421,532
Events in quadrant D3,307,653415,223

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151682
B0133322
C0142742
D0136292

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61511412.292310%
B6151520.845391%
C6151841.365632%
D6150310.504065%

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 7441 6152 84 84 1.13% 1.37%
B 7441 6152 0 0 0.00% 0.00%
C 7441 6151 1 1 0.01% 0.02%
D 7440 6151 5 5 0.07% 0.08%

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 14 237 689542 4255.15 816 802 161.9
A 0 226 7052 38.61 816 802 161.9
A 12 194 5773 30.71 816 802 161.9
B 12 111 18310 113.95 828 810 153.6
B 11 111 15672 96.77 828 810 153.6
B 14 111 13954 85.58 828 810 153.6
C 3 233 214667 1150.28 803 811 185.9
C 14 238 124795 666.88 803 811 185.9
C 5 218 35929 188.89 803 811 185.9
D 5 222 167282 859.42 806 783 193.7
D 4 239 23716 118.37 806 783 193.7
D 2 234 20698 102.79 806 783 193.7

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