ASTROSAT CZTI

Data Quality Report

Orbit 53343

Creation date: 2025-08-08T12:41:58.463916
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/AS1C09_011T08_9000006492_53343cztM0_level2.fits modeM0/AS1C09_011T08_9000006492_53343cztM0_level2_quad_clean.evt
Size (bytes)1,303,197,120158,826,240
Size1.2 GB 151.5 MB
Events in quadrant A9,578,6431,047,276
Events in quadrant B9,490,8141,168,045
Events in quadrant C20,933,091700,191
Events in quadrant D7,283,6861,039,056

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0375582
B0370882
C0707912
D0310092

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02520
B02520
C02520
D02520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12349134510.891570%
B1234910908.826626%
C12349524642.481173%
D123493182.575107%

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 13654 12351 1169 1169 8.56% 9.46%
B 13654 12350 712 712 5.21% 5.77%
C 13654 12349 4770 4770 34.93% 38.63%
D 13654 12351 274 274 2.01% 2.22%

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 15 174 3390699 11353.39 1210 1179 298.5
A 12 80 430065 1436.58 1210 1179 298.5
A 0 8 292472 975.7 1210 1179 298.5
B 4 206 1636197 6347.17 1229 1186 257.6
B 10 28 1156766 4486.0 1229 1186 257.6
B 4 171 335883 1299.31 1229 1186 257.6
C 15 158 6562663 22713.99 1047 1037 288.9
C 15 224 4013368 13889.25 1047 1037 288.9
C 9 38 3389147 11728.42 1047 1037 288.9
D 2 62 810957 2325.63 1224 1169 348.2
D 10 172 499677 1431.66 1224 1169 348.2
D 2 249 234394 669.8 1224 1169 348.2

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