ASTROSAT CZTI

Data Quality Report

Orbit 10966

Creation date: 2024-06-27T16:06:20.728819
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/AS1T01_193T01_9000001590_10966cztM0_level2.evt modeM0/AS1T01_193T01_9000001590_10966cztM0_level2_quad_clean.evt
Size (bytes)183,787,20047,779,200
Size175.3 MB 45.6 MB
Events in quadrant A1,645,785303,213
Events in quadrant B1,475,992316,758
Events in quadrant C1,077,396328,974
Events in quadrant D1,187,912311,307

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068031
B062771
C052271
D055771

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A25981646.312548%
B25981064.080062%
C259820.076982%
D2598271.039261%

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 2598 2598 136 136 5.23% 5.23%
B 2598 2598 63 63 2.42% 2.42%
C 2598 2598 0 0 0.00% 0.00%
D 2598 2598 20 20 0.77% 0.77%

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 5 589106 10449.45 267 262 56.4
A 15 223 10193 176.23 267 262 56.4
A 11 29 7175 122.68 267 262 56.4
B 4 239 312720 5694.03 278 271 54.9
B 0 187 25392 457.8 278 271 54.9
B 0 229 25360 457.22 278 271 54.9
C 13 61 2001 26.12 276 277 66.0
C 5 207 1327 15.91 276 277 66.0
C 3 202 642 5.53 276 277 66.0
D 1 52 54110 821.72 267 260 65.5
D 10 253 52197 792.53 267 260 65.5
D 2 14 19017 286.22 267 260 65.5

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