ASTROSAT CZTI

Data Quality Report

Orbit 29363

Creation date: 2024-06-27T20:03:14.614085
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/AS1T03_279T01_9000004218_29363cztM0_level2.evt modeM0/AS1T03_279T01_9000004218_29363cztM0_level2_quad_clean.evt
Size (bytes)1,205,038,080180,959,040
Size1.1 GB 172.6 MB
Events in quadrant A7,295,7851,185,189
Events in quadrant B6,447,9791,213,058
Events in quadrant C10,203,7691,133,069
Events in quadrant D11,690,6411,071,097

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02560
B02560
C02560
D02560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0297883
B0272603
C0391855
D0433083

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A127102962.328875%
B127111020.802455%
C1271012009.441385%
D12710149311.746656%

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 14030 12712 187 187 1.33% 1.47%
B 14031 12713 19 19 0.14% 0.15%
C 14030 12712 383 383 2.73% 3.01%
D 14030 12711 1154 1154 8.23% 9.08%

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 14 235 1130706 3675.06 1532 1504 307.3
A 0 13 230429 745.05 1532 1504 307.3
A 13 254 25852 79.24 1532 1504 307.3
B 15 33 85972 292.65 1533 1498 288.7
B 5 255 73176 248.32 1533 1498 288.7
B 0 229 62047 209.76 1533 1498 288.7
C 3 233 4047460 12028.61 1435 1447 336.4
C 14 238 331372 980.85 1435 1447 336.4
C 14 254 151073 444.83 1435 1447 336.4
D 7 80 2742983 8050.82 1422 1383 340.5
D 1 52 1462227 4289.83 1422 1383 340.5
D 8 195 390092 1141.46 1422 1383 340.5

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