ASTROSAT CZTI

Data Quality Report

Orbit 42207

Creation date: 2024-06-27T22:38:40.078840
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_088T52_9000005778_42207cztM0_level2.fits modeM0/AS1A12_088T52_9000005778_42207cztM0_level2_quad_clean.evt
Size (bytes)141,140,16036,656,640
Size134.6 MB 35.0 MB
Events in quadrant A1,251,881245,430
Events in quadrant B1,019,410252,972
Events in quadrant C1,047,404238,768
Events in quadrant D1,731,258212,890

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049971
B045021
C044491
D066921

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A221480.361337%
B221490.406504%
C221420.090334%
D2214984.426378%

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 3677 2215 3 3 0.08% 0.14%
B 3677 2215 1 1 0.03% 0.05%
C 3677 2215 0 0 0.00% 0.00%
D 3677 2215 86 86 2.34% 3.88%

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 244133 4547.72 250 245 53.6
A 15 223 14251 261.17 250 245 53.6
A 15 222 14121 258.74 250 245 53.6
B 0 229 23029 449.97 250 244 50.6
B 15 35 11215 216.66 250 244 50.6
B 12 111 6373 121.04 250 244 50.6
C 15 214 94324 1595.86 244 245 59.0
C 13 61 1627 23.44 244 245 59.0
C 0 207 999 12.79 244 245 59.0
D 1 52 460779 7466.8 238 229 61.7
D 2 249 131458 2127.59 238 229 61.7
D 5 70 130381 2110.13 238 229 61.7

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