ASTROSAT CZTI

Data Quality Report

Orbit 04586

Creation date: 2024-06-27T14:44:06.136400
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/AS1G05_233T10_9000000570_04586cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04586cztM0_level2_quad_clean.evt
Size (bytes)47,004,48012,712,320
Size44.8 MB 12.1 MB
Events in quadrant A424,519101,692
Events in quadrant B115,58924,824
Events in quadrant C436,60891,505
Events in quadrant D371,61385,859

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0190
C0120
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02146619589
B02329922846
C02087918922
D02180520137

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020960
B020964
C020964
D020971

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A94310.106045%
B22941.746725%
C98310.101729%
D83920.238379%

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 37372 1883 0 0 0.00% 0.00%
B 37372 453 0 0 0.00% 0.00%
C 37372 1964 0 0 0.00% 0.00%
D 37180 1675 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 0 118 1809 69.52 108 105 24.5
A 0 226 1323 49.69 108 105 24.5
A 0 13 1273 47.65 108 105 24.5
B 15 204 4402 613.11 26 26 7.1
B 14 167 3991 555.52 26 26 7.1
B 10 16 751 101.58 26 26 7.1
C 9 247 2202 76.15 110 110 27.5
C 8 128 989 31.99 110 110 27.5
C 13 61 966 31.16 110 110 27.5
D 2 136 5095 203.81 93 90 24.6
D 13 235 2627 103.31 93 90 24.6
D 13 25 2176 84.94 93 90 24.6

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