ASTROSAT CZTI

Data Quality Report

Orbit 09567

Creation date: 2024-06-27T15:47:49.437241
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/AS1G07_069T01_9000001356_09567cztM0_level2.evt modeM0/AS1G07_069T01_9000001356_09567cztM0_level2_quad_clean.evt
Size (bytes)256,919,04051,624,000
Size245.0 MB 49.2 MB
Events in quadrant A2,043,446339,649
Events in quadrant B1,861,464340,833
Events in quadrant C1,620,720331,963
Events in quadrant D2,030,346317,166

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082611
B076121
C068471
D079991

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3286571.734632%
B3286351.065125%
C3286170.517346%
D32861384.199635%

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 3285 3285 6 6 0.18% 0.18%
B 3285 3285 2 2 0.06% 0.06%
C 3285 3285 0 0 0.00% 0.00%
D 3285 3285 101 101 3.07% 3.07%

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 1 162 155411 1763.69 434 426 87.9
A 1 178 76480 865.48 434 426 87.9
A 1 161 74350 841.24 434 426 87.9
B 0 187 49545 606.98 429 421 80.9
B 10 245 48950 599.62 429 421 80.9
B 0 214 45750 560.09 429 421 80.9
C 13 61 3182 29.11 414 416 95.0
C 14 67 1863 15.23 414 416 95.0
C 1 0 1856 15.15 414 416 95.0
D 12 233 308701 3068.85 413 404 100.5
D 12 227 59841 591.65 413 404 100.5
D 7 71 38084 375.07 413 404 100.5

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