ASTROSAT CZTI

Data Quality Report

Orbit 30599

Creation date: 2024-06-27T20:17:28.816097
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_30599cztM0_level2.evt modeM0/AS1A10_058T03_9000004408_30599cztM0_level2_quad_clean.evt
Size (bytes)639,100,80077,610,240
Size609.5 MB 74.0 MB
Events in quadrant A3,534,305497,352
Events in quadrant B5,264,916495,892
Events in quadrant C4,018,600466,857
Events in quadrant D6,118,642456,664

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144152
B0197802
C0162202
D0224362

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6199701.129214%
B61991652.661720%
C61994437.146314%
D61991352.177771%

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 7514 6200 1 1 0.01% 0.02%
B 7514 6200 18 18 0.24% 0.29%
C 7514 6200 70 70 0.93% 1.13%
D 7514 6200 72 72 0.96% 1.16%

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 21989 118.66 911 900 177.7
A 13 254 11307 58.56 911 900 177.7
A 3 137 8028 40.11 911 900 177.7
B 6 159 1657760 10177.56 893 875 162.8
B 4 171 67888 411.63 893 875 162.8
B 0 229 20358 119.68 893 875 162.8
C 0 10 246686 1265.06 853 864 194.3
C 14 238 210322 1077.92 853 864 194.3
C 14 254 89084 454.0 853 864 194.3
D 8 195 2474203 12028.69 880 860 205.6
D 5 222 214583 1039.41 880 860 205.6
D 1 52 52772 252.47 880 860 205.6

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