ASTROSAT CZTI

Data Quality Report

Orbit 04640

Creation date: 2024-06-27T14:44:56.269382
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/AS1G05_214T01_9000000580_04640cztM0_level2.evt modeM0/AS1G05_214T01_9000000580_04640cztM0_level2_quad_clean.evt
Size (bytes)216,489,60049,685,760
Size206.5 MB 47.4 MB
Events in quadrant A1,392,125320,161
Events in quadrant B1,389,525323,047
Events in quadrant C1,350,417328,346
Events in quadrant D2,204,343304,774

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0657247
B0648335
C0647918
D0882350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A319460.187852%
B320000.000000%
C320830.093516%
D3199742.313223%

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 3218 3214 0 0 0.00% 0.00%
B 3218 3217 0 0 0.00% 0.00%
C 3218 3217 3 3 0.09% 0.09%
D 3218 3215 85 85 2.64% 2.64%

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 14 111 51880 722.58 344 337 71.3
A 13 251 7954 106.78 344 337 71.3
A 8 15 3806 48.63 344 337 71.3
B 4 80 16412 234.46 347 338 68.6
B 14 167 10850 153.33 347 338 68.6
B 15 204 6977 96.84 347 338 68.6
C 1 16 9394 111.33 340 342 81.3
C 12 4 6973 81.55 340 342 81.3
C 13 61 2766 29.81 340 342 81.3
D 13 235 486856 5899.28 335 324 82.5
D 13 239 179648 2174.33 335 324 82.5
D 2 136 106026 1281.65 335 324 82.5

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