ASTROSAT CZTI

Data Quality Report

Orbit 16289

Creation date: 2024-06-27T17:20:39.175762
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/AS1A05_225T04_9000002400_16289cztM0_level2.evt modeM0/AS1A05_225T04_9000002400_16289cztM0_level2_quad_clean.evt
Size (bytes)476,438,40085,824,000
Size454.4 MB 81.8 MB
Events in quadrant A3,373,691536,704
Events in quadrant B3,439,443538,669
Events in quadrant C3,320,112520,036
Events in quadrant D3,817,204512,935

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146802
B0146561
C0143721
D0160611

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7040721.022727%
B7040610.866477%
C7040801.136364%
D70401331.889205%

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 7366 7042 10 10 0.14% 0.14%
B 7366 7042 1 1 0.01% 0.01%
C 7366 7042 0 0 0.00% 0.00%
D 7366 7042 79 79 1.07% 1.12%

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 15 174 111061 639.74 846 828 172.3
A 0 226 7449 38.43 846 828 172.3
A 12 194 6386 32.26 846 828 172.3
B 0 198 33304 197.99 846 822 164.1
B 5 65 32756 194.65 846 822 164.1
B 15 35 27150 160.48 846 822 164.1
C 14 238 125609 653.18 811 816 191.1
C 0 207 20341 102.2 811 816 191.1
C 3 233 10032 48.24 811 816 191.1
D 10 70 445305 2223.7 820 796 199.9
D 1 52 266331 1328.36 820 796 199.9
D 2 234 27298 132.58 820 796 199.9

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