ASTROSAT CZTI

Data Quality Report

Orbit 30608

Creation date: 2024-06-27T20:17:35.914507
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_058T03_9000004408_30608cztM0_level2.evt modeM0/AS1A10_058T03_9000004408_30608cztM0_level2_quad_clean.evt
Size (bytes)105,546,24019,558,080
Size100.7 MB 18.7 MB
Events in quadrant A521,935135,365
Events in quadrant B792,219134,133
Events in quadrant C563,795126,914
Events in quadrant D1,248,039118,558

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A021781
B030381
C022891
D044111

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A988151.518219%
B989343.437816%
C989373.741153%
D98916416.582406%

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 1348 989 0 0 0.00% 0.00%
B 1349 990 0 0 0.00% 0.00%
C 1349 990 2 2 0.15% 0.20%
D 1349 990 135 135 10.01% 13.64%

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 8 192 11357 394.52 132 129 28.5
A 13 254 1778 57.94 132 129 28.5
A 3 137 1322 41.92 132 129 28.5
B 6 159 276463 10182.95 129 125 27.1
B 0 229 5476 197.18 129 125 27.1
B 12 111 3044 107.56 129 125 27.1
C 15 208 39488 1303.4 122 122 30.2
C 14 238 19232 632.73 122 122 30.2
C 0 10 15786 518.63 122 122 30.2
D 8 195 629502 20698.28 120 116 30.4
D 1 52 75232 2470.3 120 116 30.4
D 13 249 37207 1219.79 120 116 30.4

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