ASTROSAT CZTI

Data Quality Report

Orbit 13047

Creation date: 2024-06-27T16:35:26.869383
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/AS1A04_216T01_9000001916_13047cztM0_level2.evt modeM0/AS1A04_216T01_9000001916_13047cztM0_level2_quad_clean.evt
Size (bytes)904,285,440106,709,760
Size862.4 MB 101.8 MB
Events in quadrant A5,373,837638,359
Events in quadrant B10,569,613560,607
Events in quadrant C4,973,171642,153
Events in quadrant D5,713,600617,079

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02280
B02280
C02280
D02280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233824
B0388183
C0228083
D0248503

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A111551891.694307%
B11155251622.554908%
C111551191.066786%
D111551731.550874%

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 11391 11158 3 3 0.03% 0.03%
B 11391 11158 1464 1464 12.85% 13.12%
C 11391 11158 0 0 0.00% 0.00%
D 11391 11158 56 56 0.49% 0.50%

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 12 189 215680 814.44 1293 1263 263.3
A 8 15 58630 217.9 1293 1263 263.3
A 1 162 38601 141.82 1293 1263 263.3
B 4 239 4625380 21487.68 1135 1106 215.2
B 0 85 1044982 4850.59 1135 1106 215.2
B 3 64 180451 833.36 1135 1106 215.2
C 8 128 11947 36.28 1270 1276 294.1
C 13 61 9233 27.05 1270 1276 294.1
C 8 112 6641 18.24 1270 1276 294.1
D 1 52 453591 1500.52 1258 1220 301.5
D 8 195 385902 1276.0 1258 1220 301.5
D 2 69 48187 155.79 1258 1220 301.5

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