ASTROSAT CZTI

Data Quality Report

Orbit 20191231_C05_004T01_9000003404_level2

Creation date: 2020-01-02T16:13:26.597999
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

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/AS1C05_004T01_9000003404cztM0_level2_bc.evt modeM0/AS1C05_004T01_9000003404cztM0_level2_quad_clean.evt
Size (bytes)5,662,310,4002,252,623,680
Size5.3 GB 2.1 GB
Events in quadrant A30,318,20014,829,348
Events in quadrant B34,398,64015,057,913
Events in quadrant C32,017,92714,411,064
Events in quadrant D64,668,73213,788,530

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03045360
B03174650
C03138210
D04156260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030140
B030140
C030140
D030140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02390
B02390
C02390
D02390

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A14811916711.128147%
B14811729071.962638%
C14811929251.974764%
D14811964814.375536%

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 171394 148124 1 1 0.00% 0.00%
B 171394 148122 426 426 0.25% 0.29%
C 171394 148123 191 191 0.11% 0.13%
D 171394 148123 1157 1157 0.68% 0.78%

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 13 254 204045 116.35 7797 7667 1687.8
A 6 16 115842 64.09 7797 7667 1687.8
A 11 47 50254 25.23 7797 7667 1687.8
B 4 216 2241346 1517.06 7885 7713 1472.3
B 3 64 582902 390.66 7885 7713 1472.3
B 0 189 525204 351.47 7885 7713 1472.3
C 10 9 1004343 554.55 7572 7545 1797.5
C 0 207 992528 547.97 7572 7545 1797.5
C 0 10 392285 214.04 7572 7545 1797.5
D 1 52 22479249 12600.72 7600 7339 1783.4
D 9 85 2480512 1386.79 7600 7339 1783.4
D 13 172 1849135 1032.75 7600 7339 1783.4

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