ASTROSAT CZTI

Data Quality Report

Orbit 05458

Creation date: 2024-06-27T14:55:25.985778
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/AS1G05_178T01_9000000692_05458cztM0_level2.evt modeM0/AS1G05_178T01_9000000692_05458cztM0_level2_quad_clean.evt
Size (bytes)150,390,72015,788,160
Size143.4 MB 15.1 MB
Events in quadrant A1,052,34386,281
Events in quadrant B1,162,83586,864
Events in quadrant C1,001,76085,780
Events in quadrant D1,208,34882,125

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043222
B046341
C041301
D048381

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1871542.886157%
B1871824.382683%
C1871321.710315%
D1871623.313736%

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 3066 1872 0 0 0.00% 0.00%
B 3066 1872 1 1 0.03% 0.05%
C 3066 1872 0 0 0.00% 0.00%
D 3066 1872 30 30 0.98% 1.60%

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 13 251 54489 979.22 256 250 55.4
A 13 6 4614 78.79 256 250 55.4
A 12 194 2530 41.16 256 250 55.4
B 15 204 75535 1438.53 257 251 52.3
B 10 16 52103 990.79 257 251 52.3
B 11 51 19340 364.75 257 251 52.3
C 14 67 16658 268.29 250 251 61.2
C 9 247 4502 69.51 250 251 61.2
C 12 4 3937 60.27 250 251 61.2
D 2 33 159025 2494.91 248 240 63.6
D 2 136 34527 538.73 248 240 63.6
D 2 152 26823 417.68 248 240 63.6

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