ASTROSAT CZTI

Data Quality Report

Orbit 02284

Creation date: 2024-06-27T14:15:39.591143
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_058T01_9000000348_02284cztM0_level2.evt modeM0/AS1T01_058T01_9000000348_02284cztM0_level2_quad_clean.evt
Size (bytes)244,630,08033,704,640
Size233.3 MB 32.1 MB
Events in quadrant A1,594,876192,277
Events in quadrant B1,614,358198,331
Events in quadrant C1,673,561197,631
Events in quadrant D2,287,174184,606

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071412
B071531
C073031
D091501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3487270.774305%
B3487310.889016%
C3487200.573559%
D34871042.982506%

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 4607 3487 0 0 0.00% 0.00%
B 4608 3488 1 1 0.02% 0.03%
C 4608 3489 1 1 0.02% 0.03%
D 4608 3488 40 40 0.87% 1.15%

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 13 9 5147 55.58 412 403 85.4
A 12 194 4754 50.98 412 403 85.4
A 0 226 4437 47.26 412 403 85.4
B 12 111 6026 69.58 417 408 80.7
B 11 111 5009 56.98 417 408 80.7
B 0 182 4429 49.8 417 408 80.7
C 5 234 75787 786.27 405 406 95.9
C 8 112 6306 61.54 405 406 95.9
C 13 61 3671 34.06 405 406 95.9
D 9 66 687880 7184.68 398 389 95.7
D 6 112 60207 625.13 398 389 95.7
D 13 169 17437 178.16 398 389 95.7

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