ASTROSAT CZTI

Data Quality Report

Orbit 35719

Creation date: 2024-06-27T21:17:18.068483
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/AS1A09_143T04_9000005120_35719cztM0_level2.evt modeM0/AS1A09_143T04_9000005120_35719cztM0_level2_quad_clean.evt
Size (bytes)96,382,0808,461,440
Size91.9 MB 8.1 MB
Events in quadrant A611,88041,986
Events in quadrant B865,27741,587
Events in quadrant C793,80941,783
Events in quadrant D564,44540,371

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A025282
B033231
C030451
D024621

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A118540.337553%
B1185705.907173%
C1185534.472574%
D118540.337553%

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 2679 1186 0 0 0.00% 0.00%
B 2679 1186 35 35 1.31% 2.95%
C 2679 1186 51 51 1.90% 4.30%
D 2679 1186 2 2 0.07% 0.17%

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 10 83 53574 1713.31 142 138 31.2
A 7 16 4197 130.14 142 138 31.2
A 13 6 2011 60.05 142 138 31.2
B 5 172 294179 10051.29 140 136 29.3
B 5 255 10893 367.71 140 136 29.3
B 0 155 6413 214.57 140 136 29.3
C 0 10 111366 3399.29 134 135 32.7
C 0 207 96043 2931.01 134 135 32.7
C 15 214 53523 1631.57 134 135 32.7
D 13 249 24016 678.71 136 132 35.2
D 10 203 4848 134.01 136 132 35.2
D 2 234 4376 120.6 136 132 35.2

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