ASTROSAT CZTI

Data Quality Report

Orbit 09653

Creation date: 2024-06-27T15:48:55.701755
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/AS1A03_077T01_9000001372_09653cztM0_level2.evt modeM0/AS1A03_077T01_9000001372_09653cztM0_level2_quad_clean.evt
Size (bytes)866,862,720123,459,840
Size826.7 MB 117.7 MB
Events in quadrant A5,449,193757,078
Events in quadrant B5,746,451767,952
Events in quadrant C5,410,209758,399
Events in quadrant D8,884,959675,153

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02280
B02280
C02280
D02280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232033
B0237984
C0232332
D0338434

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11276380.336999%
B11275680.603104%
C11276440.390209%
D112759418.345898%

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 13821 11278 0 0 0.00% 0.00%
B 13821 11278 6 6 0.04% 0.05%
C 13821 11278 0 0 0.00% 0.00%
D 13821 11278 863 863 6.24% 7.65%

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 0 226 13353 42.38 1413 1384 282.4
A 12 194 11473 35.72 1413 1384 282.4
A 15 174 8419 24.91 1413 1384 282.4
B 0 214 120789 450.82 1420 1389 264.9
B 0 229 39820 145.1 1420 1389 264.9
B 0 219 34374 124.54 1420 1389 264.9
C 5 128 12090 33.88 1382 1393 315.7
C 13 61 10381 28.47 1382 1393 315.7
C 14 67 8172 21.47 1382 1393 315.7
D 1 52 2341288 7413.64 1319 1286 315.6
D 7 71 986177 3120.35 1319 1286 315.6
D 12 233 385671 1217.82 1319 1286 315.6

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