ASTROSAT CZTI

Data Quality Report

Orbit 06076

Creation date: 2024-06-27T15:02:25.656739
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/AS1A02_028T03_9000000788_06076cztM0_level2.evt modeM0/AS1A02_028T03_9000000788_06076cztM0_level2_quad_clean.evt
Size (bytes)121,538,88032,382,720
Size115.9 MB 30.9 MB
Events in quadrant A838,440221,426
Events in quadrant B1,016,429220,043
Events in quadrant C788,494216,656
Events in quadrant D929,485207,608

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034222
B040221
C032761
D037311

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1545120.776699%
B1545624.012945%
C154520.129450%
D1545241.553398%

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 1545 1545 0 0 0.00% 0.00%
B 1545 1545 37 37 2.39% 2.39%
C 1545 1545 0 0 0.00% 0.00%
D 1545 1545 8 8 0.52% 0.52%

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 15 11314 249.9 212 207 44.4
A 14 111 10649 234.94 212 207 44.4
A 12 194 2183 44.46 212 207 44.4
B 3 64 124030 3031.79 205 200 40.8
B 10 245 32945 801.71 205 200 40.8
B 4 81 26096 634.02 205 200 40.8
C 1 16 2554 49.28 201 201 47.7
C 13 61 1639 30.12 201 201 47.7
C 8 222 1106 18.95 201 201 47.7
D 11 241 102158 1982.04 204 198 51.4
D 12 221 30664 592.24 204 198 51.4
D 13 137 6465 121.83 204 198 51.4

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