ASTROSAT CZTI

Data Quality Report

Orbit 30427

Creation date: 2024-06-27T20:15:06.999249
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_121T02_9000004378_30427cztM0_level2.evt modeM0/AS1A10_121T02_9000004378_30427cztM0_level2_quad_clean.evt
Size (bytes)551,767,68095,944,320
Size526.2 MB 91.5 MB
Events in quadrant A3,298,278626,354
Events in quadrant B5,124,285627,439
Events in quadrant C3,617,264619,784
Events in quadrant D4,260,907609,483

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137141
B0190621
C0148691
D0167621

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6049781.289469%
B60501432.363636%
C60501933.190083%
D60504787.900826%

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 7359 6049 1 1 0.01% 0.02%
B 7360 6050 0 0 0.00% 0.00%
C 7360 6050 7 7 0.10% 0.12%
D 7360 6050 167 167 2.27% 2.76%

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 0 13 14105 79.82 848 835 166.3
A 8 192 13002 73.18 848 835 166.3
A 13 254 12015 67.25 848 835 166.3
B 6 159 1813414 11556.8 841 821 156.8
B 12 111 18288 111.37 841 821 156.8
B 0 229 18087 110.09 841 821 156.8
C 3 233 167571 866.95 829 837 192.3
C 14 238 137837 712.35 829 837 192.3
C 0 10 60843 312.01 829 837 192.3
D 13 104 556414 2649.76 806 794 209.7
D 13 249 282756 1344.68 806 794 209.7
D 2 250 163810 777.43 806 794 209.7

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