ASTROSAT CZTI

Data Quality Report

Orbit 05383

Creation date: 2024-06-27T14:54:34.045871
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_214T01_9000000684_05383cztM0_level2.evt modeM0/AS1G05_214T01_9000000684_05383cztM0_level2_quad_clean.evt
Size (bytes)739,491,84066,928,320
Size705.2 MB 63.8 MB
Events in quadrant A2,851,432431,296
Events in quadrant B3,019,485438,645
Events in quadrant C3,167,172430,047
Events in quadrant D12,961,098315,439

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123232
B0126891
C0132631
D0424931

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5865440.750213%
B5865500.852515%
C5865260.443308%
D5865350659.778346%

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 7169 5864 14 14 0.20% 0.24%
B 7169 5864 10 10 0.14% 0.17%
C 7169 5864 0 0 0.00% 0.00%
D 7169 5864 4802 4802 66.98% 81.89%

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 76613 529.58 708 695 143.4
A 0 50 27320 185.73 708 695 143.4
A 8 176 12347 81.28 708 695 143.4
B 4 48 42064 303.35 723 707 136.3
B 4 80 38857 279.82 723 707 136.3
B 15 204 29893 214.07 723 707 136.3
C 1 16 452392 2830.61 692 697 159.6
C 12 4 8270 47.46 692 697 159.6
C 13 61 5633 30.93 692 697 159.6
D 7 237 9771770 66393.08 595 578 147.2
D 2 63 407394 2764.22 595 578 147.2
D 1 239 317098 2150.68 595 578 147.2

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