ASTROSAT CZTI

Data Quality Report

Orbit 47193

Creation date: 2024-06-27T23:32:40.412345
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/AS1A13_037T01_9000006300_47193cztM0_level2.fits modeM0/AS1A13_037T01_9000006300_47193cztM0_level2_quad_clean.evt
Size (bytes)730,722,240160,418,880
Size696.9 MB 153.0 MB
Events in quadrant A9,655,0901,073,935
Events in quadrant B5,443,4611,082,702
Events in quadrant C4,629,0411,033,813
Events in quadrant D6,525,859954,509

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02100
B02100
C02100
D02100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0355171
B0232651
C0215531
D0266161

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A102762152.092254%
B102763153.065395%
C102771291.255230%
D102772352.286660%

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 10656 10276 6 6 0.06% 0.06%
B 10656 10276 116 116 1.09% 1.13%
C 10657 10278 63 63 0.59% 0.61%
D 10657 10279 161 161 1.51% 1.57%

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 10 83 5154506 22039.66 1118 1091 233.8
A 9 191 163208 693.33 1118 1091 233.8
A 13 254 19718 79.66 1118 1091 233.8
B 0 190 399819 1800.2 1108 1071 221.5
B 15 201 315727 1420.55 1108 1071 221.5
B 0 200 178708 801.96 1108 1071 221.5
C 14 254 300828 1159.53 1093 1099 258.5
C 10 20 34978 131.06 1093 1099 258.5
C 3 233 13808 49.17 1093 1099 258.5
D 6 112 1596044 5787.12 1092 1059 275.6
D 1 47 228252 824.33 1092 1059 275.6
D 12 218 129148 464.75 1092 1059 275.6

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