ASTROSAT CZTI

Data Quality Report

Orbit 28443

Creation date: 2024-06-27T19:51:48.095020
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/AS1A10_101T21_9000004090_28443cztM0_level2.evt modeM0/AS1A10_101T21_9000004090_28443cztM0_level2_quad_clean.evt
Size (bytes)521,786,880122,238,720
Size497.6 MB 116.6 MB
Events in quadrant A3,223,959826,300
Events in quadrant B3,484,698841,685
Events in quadrant C3,382,265823,381
Events in quadrant D5,295,776782,632

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136010
B0143460
C0141010
D0200480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6130580.946166%
B61311011.647366%
C61311101.794161%
D61313135.105203%

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 7505 6130 0 0 0.00% 0.00%
B 7506 6131 26 26 0.35% 0.42%
C 7506 6131 1 1 0.01% 0.02%
D 7506 6131 325 325 4.33% 5.30%

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 15 169 14423 83.77 830 816 162.4
A 13 254 10079 57.03 830 816 162.4
A 3 137 7423 40.68 830 816 162.4
B 10 245 186039 1229.62 823 804 150.6
B 0 183 40432 263.06 823 804 150.6
B 0 230 20029 127.62 823 804 150.6
C 14 238 133934 710.92 819 828 187.2
C 7 220 51821 272.35 819 828 187.2
C 13 61 5544 25.19 819 828 187.2
D 1 52 1205053 6342.91 810 790 189.9
D 8 195 844166 4442.1 810 790 189.9
D 2 250 113400 593.12 810 790 189.9

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