ASTROSAT CZTI

Data Quality Report

Orbit 29041

Creation date: 2024-06-27T19:59:34.693560
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/AS1C05_019T04_9000004162_29041cztM0_level2.evt modeM0/AS1C05_019T04_9000004162_29041cztM0_level2_quad_clean.evt
Size (bytes)555,336,000125,277,120
Size529.6 MB 119.5 MB
Events in quadrant A3,482,121826,045
Events in quadrant B3,606,882842,812
Events in quadrant C3,767,071813,679
Events in quadrant D5,447,590783,756

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156322
B0158781
C0160531
D0213191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7593911.198472%
B75931271.672593%
C75931321.738443%
D75932483.266166%

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 7678 7593 0 0 0.00% 0.00%
B 7678 7595 4 4 0.05% 0.05%
C 7678 7595 0 0 0.00% 0.00%
D 7678 7595 164 164 2.14% 2.16%

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 13319 68.24 900 878 182.3
A 3 137 9306 46.23 900 878 182.3
A 0 226 7703 37.44 900 878 182.3
B 0 190 27434 153.76 898 872 172.8
B 10 245 23101 128.67 898 872 172.8
B 12 111 21806 121.18 898 872 172.8
C 3 233 219563 1075.54 864 866 203.3
C 14 238 139779 683.17 864 866 203.3
C 2 16 22640 107.08 864 866 203.3
D 1 52 1426544 6919.0 861 834 206.1
D 8 195 540250 2617.8 861 834 206.1
D 2 250 197601 954.91 861 834 206.1

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