ASTROSAT CZTI

Data Quality Report

Orbit 48321

Creation date: 2024-09-07T10:22:39.565405
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/AS1A13_029T01_9000006422_48321cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48321cztM0_level2_quad_clean.evt
Size (bytes)647,435,520135,204,480
Size617.4 MB 128.9 MB
Events in quadrant A8,991,945884,843
Events in quadrant B4,900,910919,304
Events in quadrant C3,919,587903,648
Events in quadrant D5,492,054793,075

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0325600
B0204340
C0178470
D0224290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85355095.963679%
B85364114.814902%
C8536280.328022%
D85364805.623243%

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 8535 8535 44 44 0.52% 0.52%
B 8536 8536 125 125 1.46% 1.46%
C 8536 8536 3 3 0.04% 0.04%
D 8536 8536 291 291 3.41% 3.41%

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 4997640 23901.98 990 967 209.0
A 13 248 136227 647.03 990 967 209.0
A 0 247 20959 95.63 990 967 209.0
B 4 21 361466 1830.18 989 957 197.0
B 0 186 261946 1324.95 989 957 197.0
B 0 200 150743 760.41 989 957 197.0
C 12 2 40080 168.19 984 988 232.4
C 12 249 18527 75.46 984 988 232.4
C 1 16 18434 75.06 984 988 232.4
D 12 233 1155964 4685.49 966 930 246.5
D 5 222 202297 816.86 966 930 246.5
D 13 29 172509 696.02 966 930 246.5

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