ASTROSAT CZTI

Data Quality Report

Orbit 11219

Creation date: 2024-06-27T16:09:55.825990
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_200T01_9000001638_11219cztM0_level2.evt modeM0/AS1T01_200T01_9000001638_11219cztM0_level2_quad_clean.evt
Size (bytes)257,106,24054,267,840
Size245.2 MB 51.8 MB
Events in quadrant A2,672,762340,513
Events in quadrant B1,694,103369,338
Events in quadrant C1,363,325374,571
Events in quadrant D1,857,020351,131

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099372
B069361
C060421
D074501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A290337913.055460%
B29031354.650362%
C2903200.688942%
D29031083.720289%

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 3968 2904 238 238 6.00% 8.20%
B 3968 2904 39 39 0.98% 1.34%
C 3968 2904 0 0 0.00% 0.00%
D 3968 2904 56 56 1.41% 1.93%

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 1192801 17373.95 331 322 68.6
A 14 238 79379 1151.83 331 322 68.6
A 8 15 40873 590.81 331 322 68.6
B 4 239 258947 3857.05 351 342 67.0
B 15 204 18527 271.23 351 342 67.0
B 4 80 17374 254.03 351 342 67.0
C 4 254 9633 114.06 347 348 81.4
C 13 61 2462 25.97 347 348 81.4
C 14 67 938 7.25 347 348 81.4
D 1 52 193825 2381.04 336 326 81.3
D 8 195 135348 1661.47 336 326 81.3
D 10 253 86590 1061.49 336 326 81.3

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