ASTROSAT CZTI

Data Quality Report

Orbit 26329

Creation date: 2024-06-27T19:27:32.330635
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/AS1A09_008T02_9000003796_26329cztM0_level2.evt modeM0/AS1A09_008T02_9000003796_26329cztM0_level2_quad_clean.evt
Size (bytes)516,297,600124,902,720
Size492.4 MB 119.1 MB
Events in quadrant A3,249,134850,130
Events in quadrant B3,327,569875,168
Events in quadrant C4,190,900818,097
Events in quadrant D4,445,621804,070

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135270
B0137440
C0165680
D0173490

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6234360.577478%
B6234580.930382%
C62342794.475457%
D62341482.374078%

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 7599 6235 0 0 0.00% 0.00%
B 7599 6235 2 2 0.03% 0.03%
C 7599 6235 103 103 1.36% 1.65%
D 7599 6235 112 112 1.47% 1.80%

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 10714 59.42 842 828 166.4
A 3 137 7330 39.08 842 828 166.4
A 0 226 7118 37.8 842 828 166.4
B 12 111 17859 109.82 845 825 155.1
B 0 230 16274 99.61 845 825 155.1
B 11 111 16024 97.99 845 825 155.1
C 3 233 866746 4716.56 805 814 183.6
C 14 238 132210 715.69 805 814 183.6
C 2 16 44979 240.56 805 814 183.6
D 1 52 1250617 6545.16 811 793 191.0
D 12 227 100352 521.38 811 793 191.0
D 2 234 25162 127.61 811 793 191.0

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