ASTROSAT CZTI

Data Quality Report

Orbit 24307

Creation date: 2024-06-27T19:04:36.672793
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_145T01_9000003594_24307cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24307cztM0_level2_quad_clean.evt
Size (bytes)488,373,12091,039,680
Size465.7 MB 86.8 MB
Events in quadrant A3,189,831565,787
Events in quadrant B3,264,175584,310
Events in quadrant C3,781,535576,258
Events in quadrant D4,091,936555,894

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139411
B0139761
C0154161
D0165141

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68141171.717053%
B68141291.893161%
C68141301.907837%
D68141422.083945%

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 7099 6814 0 0 0.00% 0.00%
B 7099 6814 0 0 0.00% 0.00%
C 7099 6814 6 6 0.08% 0.09%
D 7099 6814 75 75 1.06% 1.10%

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 10651 58.81 824 804 167.4
A 3 137 7770 41.6 824 804 167.4
A 0 226 7039 37.24 824 804 167.4
B 12 111 19672 119.5 824 803 157.9
B 11 111 17275 104.32 824 803 157.9
B 14 111 15673 94.17 824 803 157.9
C 7 247 468357 2527.21 793 799 185.0
C 14 238 126226 677.95 793 799 185.0
C 2 16 73362 392.21 793 799 185.0
D 1 52 828017 4226.25 801 775 195.7
D 12 233 197124 1003.12 801 775 195.7
D 2 234 26315 130.48 801 775 195.7

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