ASTROSAT CZTI

Data Quality Report

Orbit 10292

Creation date: 2024-06-27T15:57:31.560212
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_072T01_9000001484_10292cztM0_level2.evt modeM0/AS1A03_072T01_9000001484_10292cztM0_level2_quad_clean.evt
Size (bytes)335,312,64068,503,680
Size319.8 MB 65.3 MB
Events in quadrant A2,750,919461,923
Events in quadrant B2,301,832423,966
Events in quadrant C2,429,899484,792
Events in quadrant D2,353,529375,989

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02828017504
B02792118708
C02481114468
D03285123661

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240122
B0240118
C0240123
D0227112

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0218
B02512
C02512
D02511

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A45592385.220443%
B4362280.641907%
C509780.156955%
D4404130.295186%

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 7546 5355 207 207 2.74% 3.87%
B 7545 5250 13 13 0.17% 0.25%
C 7546 5875 0 0 0.00% 0.00%
D 7546 5002 0 0 0.00% 0.00%

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 5 16 554395 4933.19 558 548 112.3
A 8 15 43356 381.3 558 548 112.3
A 0 226 5120 40.72 558 548 112.3
B 4 239 101842 969.7 551 541 104.5
B 11 51 30952 291.11 551 541 104.5
B 0 214 18483 171.75 551 541 104.5
C 13 61 4652 28.02 622 627 143.6
C 8 222 2205 10.99 622 627 143.6
C 14 234 1629 6.98 622 627 143.6
D 8 195 153922 1167.56 546 532 131.4
D 1 20 48398 364.34 546 532 131.4
D 2 152 29187 218.11 546 532 131.4

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