ASTROSAT CZTI

Data Quality Report

Orbit 13233

Creation date: 2024-06-27T16:38:10.412188
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/AS1A04_216T01_9000001968_13233cztM0_level2.evt modeM0/AS1A04_216T01_9000001968_13233cztM0_level2_quad_clean.evt
Size (bytes)654,269,760123,370,560
Size624.0 MB 117.7 MB
Events in quadrant A4,867,310807,684
Events in quadrant B6,627,392770,122
Events in quadrant C3,779,587817,238
Events in quadrant D3,989,170776,029

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197543
B0251102
C0169962
D0177152

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81284355.351870%
B8128126615.575787%
C81282543.125000%
D81282733.358760%

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 8984 8132 140 140 1.56% 1.72%
B 8984 8130 748 748 8.33% 9.20%
C 8984 8132 1 1 0.01% 0.01%
D 8984 8132 40 40 0.45% 0.49%

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 15 239 893384 4603.01 956 933 193.9
A 12 189 200571 1029.68 956 933 193.9
A 1 162 30145 150.67 956 933 193.9
B 4 239 3078432 18197.96 887 863 169.1
B 0 197 24967 142.53 887 863 169.1
B 12 111 19538 110.43 887 863 169.1
C 15 208 81256 366.11 947 948 219.4
C 13 61 7047 27.8 947 948 219.4
C 8 222 4270 15.14 947 948 219.4
D 5 222 160485 712.29 935 906 224.0
D 1 52 122308 541.88 935 906 224.0
D 8 195 105023 464.73 935 906 224.0

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