ASTROSAT CZTI

Data Quality Report

Orbit 09263

Creation date: 2024-06-27T15:43:35.087549
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_091T05_9000001300_09263cztM0_level2.evt modeM0/AS1A03_091T05_9000001300_09263cztM0_level2_quad_clean.evt
Size (bytes)98,389,44022,682,880
Size93.8 MB 21.6 MB
Events in quadrant A779,400141,506
Events in quadrant B734,772152,901
Events in quadrant C689,395151,247
Events in quadrant D679,455138,355

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011886
B011085
C011484
D011783

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520212088
B0127399749
C0120019105
D01338710498

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0207
B0207
C0206
D0219

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1297120.925212%
B135840.294551%
C139320.143575%
D136420.146628%

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 7453 1823 10 10 0.13% 0.55%
B 7459 1878 0 0 0.00% 0.00%
C 7458 1970 1 1 0.01% 0.05%
D 7459 1898 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 8 5 75262 2159.43 164 161 34.8
A 5 16 53030 1520.18 164 161 34.8
A 1 162 7557 212.66 164 161 34.8
B 0 245 13662 382.21 176 173 35.3
B 0 219 13090 366.01 176 173 35.3
B 0 214 6954 192.14 176 173 35.3
C 9 68 11328 272.02 172 173 41.0
C 14 234 4074 95.13 172 173 41.0
C 13 61 1262 26.56 172 173 41.0
D 7 71 17844 383.51 165 161 46.1
D 1 52 14753 316.47 165 161 46.1
D 2 136 12058 258.02 165 161 46.1

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