ASTROSAT CZTI

Data Quality Report

Orbit 15544

Creation date: 2024-06-27T17:10:05.881908
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/AS1G08_058T09_9000002300_15544cztM0_level2.evt modeM0/AS1G08_058T09_9000002300_15544cztM0_level2_quad_clean.evt
Size (bytes)232,079,04029,747,520
Size221.3 MB 28.4 MB
Events in quadrant A1,715,066169,825
Events in quadrant B1,743,581170,636
Events in quadrant C1,646,429159,812
Events in quadrant D1,692,670160,789

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069070
B070600
C068020
D070060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A336630.089127%
B3366170.505051%
C3366160.475342%
D336630.089127%

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 3367 3367 1 1 0.03% 0.03%
B 3367 3367 9 9 0.27% 0.27%
C 3367 3367 1 1 0.03% 0.03%
D 3367 3367 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 0 253 47425 534.68 433 425 87.9
A 0 226 3959 40.2 433 425 87.9
A 9 143 3627 36.43 433 425 87.9
B 15 201 29065 355.17 423 416 80.7
B 0 213 23188 282.31 423 416 80.7
B 15 222 13306 159.8 423 416 80.7
C 14 238 64213 685.91 400 403 93.0
C 3 233 11943 124.05 400 403 93.0
C 10 22 7221 73.29 400 403 93.0
D 5 222 68373 661.59 415 402 102.7
D 1 52 29392 282.17 415 402 102.7
D 2 234 14033 132.68 415 402 102.7

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