ASTROSAT CZTI

Data Quality Report

Orbit 27386

Creation date: 2024-06-27T19:39:34.958028
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/AS1T03_249T01_9000003934_27386cztM0_level2.evt modeM0/AS1T03_249T01_9000003934_27386cztM0_level2_quad_clean.evt
Size (bytes)650,154,24088,142,400
Size620.0 MB 84.1 MB
Events in quadrant A3,117,162597,501
Events in quadrant B3,158,955603,154
Events in quadrant C3,153,003573,438
Events in quadrant D9,860,708481,705

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124830
B0126080
C0126070
D0334570

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5910450.761421%
B5911631.065810%
C5911881.488750%
D5910266345.059222%

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 7210 5910 0 0 0.00% 0.00%
B 7211 5912 4 4 0.06% 0.07%
C 7211 5912 4 4 0.06% 0.07%
D 7209 5909 2520 2520 34.96% 42.65%

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 12 96 12276 72.01 804 793 159.5
A 13 254 9738 56.1 804 793 159.5
A 0 226 7144 39.83 804 793 159.5
B 15 32 23479 152.68 792 775 148.7
B 0 190 19914 128.71 792 775 148.7
B 12 111 17509 112.53 792 775 148.7
C 14 238 124893 699.61 763 769 177.4
C 2 16 53452 296.94 763 769 177.4
C 13 61 5289 25.48 763 769 177.4
D 1 52 7632008 57322.02 575 565 133.1
D 2 250 24056 176.45 575 565 133.1
D 2 234 17946 130.55 575 565 133.1

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