ASTROSAT CZTI

Data Quality Report

Orbit 06119

Creation date: 2024-06-27T15:03:00.685750
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/AS1A02_104T01_9000000794_06119cztM0_level2.evt modeM0/AS1A02_104T01_9000000794_06119cztM0_level2_quad_clean.evt
Size (bytes)2,487,476,160433,258,560
Size2.3 GB 413.2 MB
Events in quadrant A18,148,7752,636,746
Events in quadrant B19,053,5422,692,750
Events in quadrant C17,134,9212,666,062
Events in quadrant D18,446,2192,534,684

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07680
B07680
C07680
D07680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07940832
B08171921
C07768515
D08152323

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0300
C0300
D0310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A377295581.478968%
B377287291.932252%
C377312380.630781%
D377275201.378323%

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 47307 37738 15 15 0.03% 0.04%
B 47307 37740 139 139 0.29% 0.37%
C 47307 37741 3 3 0.01% 0.01%
D 47307 37740 199 199 0.42% 0.53%

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 8 15 912916 991.91 4443 4332 916.0
A 13 251 71457 73.28 4443 4332 916.0
A 12 194 44883 44.27 4443 4332 916.0
B 3 64 1023171 1162.89 4492 4369 876.1
B 15 204 196949 219.82 4492 4369 876.1
B 0 214 138129 152.68 4492 4369 876.1
C 1 16 147758 141.65 4330 4337 1012.5
C 9 54 56206 51.23 4330 4337 1012.5
C 13 61 34802 30.09 4330 4337 1012.5
D 13 105 571573 532.46 4317 4181 1065.6
D 14 173 300459 278.04 4317 4181 1065.6
D 2 206 296718 274.53 4317 4181 1065.6

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