ASTROSAT CZTI

Data Quality Report

Orbit 43058

Creation date: 2024-06-27T22:47:28.776644
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/AS1A09_006T09_9000005842_43058cztM0_level2.fits modeM0/AS1A09_006T09_9000005842_43058cztM0_level2_quad_clean.evt
Size (bytes)282,358,08073,863,360
Size269.3 MB 70.4 MB
Events in quadrant A2,453,019491,070
Events in quadrant B2,021,386509,068
Events in quadrant C2,094,374491,385
Events in quadrant D3,532,471429,541

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100451
B092341
C091121
D0135592

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4494260.578549%
B449430.066756%
C449440.089008%
D44932926.498998%

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 5956 4495 14 14 0.24% 0.31%
B 5956 4495 0 0 0.00% 0.00%
C 5956 4495 0 0 0.00% 0.00%
D 5955 4494 205 205 3.44% 4.56%

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 408499 4027.88 486 476 101.3
A 12 189 80140 786.42 486 476 101.3
A 15 237 77112 756.53 486 476 101.3
B 4 171 41633 429.22 489 474 95.9
B 3 112 21596 220.26 489 474 95.9
B 5 255 13646 137.36 489 474 95.9
C 15 214 193709 1694.22 483 485 114.0
C 0 207 7339 60.1 483 485 114.0
C 14 254 4400 34.33 483 485 114.0
D 1 52 1163974 10102.01 464 450 115.2
D 13 171 235737 2042.82 464 450 115.2
D 12 6 117474 1016.03 464 450 115.2

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