ASTROSAT CZTI

Data Quality Report

Orbit 24106

Creation date: 2024-06-27T19:02:14.943295
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_012T04_9000003564_24106cztM0_level2.evt modeM0/AS1C05_012T04_9000003564_24106cztM0_level2_quad_clean.evt
Size (bytes)574,194,240133,894,080
Size547.6 MB 127.7 MB
Events in quadrant A3,306,987912,383
Events in quadrant B3,713,936911,008
Events in quadrant C3,480,830881,000
Events in quadrant D6,400,651850,299

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146021
B0157371
C0149451
D0240722

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7189150.208652%
B71901331.849791%
C7190791.098748%
D71891872.601196%

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 7609 7190 0 0 0.00% 0.00%
B 7610 7191 91 91 1.20% 1.27%
C 7610 7191 14 14 0.18% 0.19%
D 7609 7190 98 98 1.29% 1.36%

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 13040 70.53 853 832 173.1
A 2 250 8973 47.03 853 832 173.1
A 3 137 7638 39.32 853 832 173.1
B 0 245 253353 1578.44 842 822 160.0
B 5 172 76348 472.08 842 822 160.0
B 0 229 35998 219.87 842 822 160.0
C 14 238 130517 675.83 820 822 191.9
C 7 247 85798 442.8 820 822 191.9
C 0 239 58934 302.82 820 822 191.9
D 8 195 2763966 13507.94 828 802 204.6
D 12 233 155237 754.97 828 802 204.6
D 1 52 103444 501.77 828 802 204.6

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