ASTROSAT CZTI

Data Quality Report

Orbit 43628

Creation date: 2024-06-27T22:53:49.885719
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/AS1A12_095T02_9000005892_43628cztM0_level2.fits modeM0/AS1A12_095T02_9000005892_43628cztM0_level2_quad_clean.evt
Size (bytes)1,465,303,680144,374,400
Size1.4 GB 137.7 MB
Events in quadrant A7,520,3601,115,645
Events in quadrant B6,603,3721,131,213
Events in quadrant C24,341,605563,214
Events in quadrant D14,974,752835,936

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0296835
B0266255
C0793724
D05181322

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02120
B02120
C02120
D02120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A103792212.129300%
B103804384.219653%
C10381867083.517966%
D10379346333.365449%

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 11831 10381 65 65 0.55% 0.63%
B 11832 10382 246 246 2.08% 2.37%
C 11831 10381 8542 8542 72.20% 82.28%
D 11832 10381 2969 2969 25.09% 28.60%

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 10 83 1247882 5123.39 1171 1145 243.3
A 14 63 803102 3295.59 1171 1145 243.3
A 15 222 385990 1581.5 1171 1145 243.3
B 5 235 997101 4415.1 1156 1121 225.6
B 3 42 221511 976.97 1156 1121 225.6
B 10 245 120442 528.94 1156 1121 225.6
C 15 142 16735981 115016.82 614 618 145.5
C 15 174 2437853 16750.34 614 618 145.5
C 15 126 1074456 7380.15 614 618 145.5
D 4 211 2034703 7810.64 992 957 260.4
D 4 212 1566007 6010.6 992 957 260.4
D 0 240 1402967 5384.45 992 957 260.4

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